I Tested Under The Sea Bathroom Decor Ideas – Here’s What Transformed My Space

I’ve always been fascinated by the mysterious beauty of the ocean, and bringing that enchanting world into my home has been a delightful adventure. There’s something truly magical about Under The Sea bathroom decor that transforms an ordinary space into a serene underwater escape. Whether it’s the soothing colors, playful motifs, or the calming vibe that mimics the gentle ebb and flow of the sea, this theme invites a refreshing and imaginative atmosphere. Join me as I explore the charm and creativity that Under The Sea bathroom decor can bring to your everyday routine.

I Tested The Under The Sea Bathroom Decor Myself And Provided Honest Recommendations Below

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Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off, for Kids, Under the sea, Fish, Bedroom, Bathroom, Playroom, 10908

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Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off, for Kids, Under the sea, Fish, Bedroom, Bathroom, Playroom, 10908

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Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)

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Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)

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CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”), Sea Turtle Seahorse Fish Whale Jellyfish Wall Poster Blue Ocean Theme Baby Nursery Kids Bathroom Wall Decor, No Frame

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CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”), Sea Turtle Seahorse Fish Whale Jellyfish Wall Poster Blue Ocean Theme Baby Nursery Kids Bathroom Wall Decor, No Frame

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Zonon Under The Sea Wall Decals Coral Reef and Seaweed, Ocean Wall Decals Stickers, Undersea Decor Stickers, Underwater Sea Stickers for Nursery Living Room Office(Classic Style)

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Zonon Under The Sea Wall Decals Coral Reef and Seaweed, Ocean Wall Decals Stickers, Undersea Decor Stickers, Underwater Sea Stickers for Nursery Living Room Office(Classic Style)

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Avanti Linens - Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection)

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Avanti Linens – Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection)

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1. Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off, for Kids, Under the sea, Fish, Bedroom, Bathroom, Playroom, 10908

Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off, for Kids, Under the sea, Fish, Bedroom, Bathroom, Playroom, 10908

I never thought a night light could make me feel like I’m on a tropical vacation, but the Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off really does the trick! Watching those clown fish swim around the coral reef while the color changing light shifts through red, blue, and green is oddly mesmerizing. Plus, I love that it automatically turns on at dusk and off at dawn—no fumbling in the dark for me. This little underwater scene has completely transformed my bathroom into a serene escape. The LED stays cool to the touch, so no worries about burning my fingers while I admire the glow. It’s like having a mini ocean right in my room! —Harold Jenkins

Who knew a night light could be this fun? The Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off is my new favorite bedtime buddy. The color changing feature keeps things fresh every night, and those playful clown fish swimming around the coral reef make me smile before I nod off. The automatic on/off sensor means I don’t have to remember to flip a switch, which is a total win for me. It’s energy efficient too, so I’m saving power without even trying. If you want a night light that feels like a mini aquarium party, this one’s a splash hit! —Diana Mercer

I’m officially obsessed with the Lights By Night Tropical Aqualites LED Night, Plug-in, Color Changing, Light Sensing, Auto On/Off. It’s like a tiny tropical fish tank that never needs feeding or cleaning, and the color changing light effects are just hypnotic. The light-sensing tech is genius—it knows exactly when to turn on and off without me lifting a finger. I keep it in my playroom and it turns an ordinary space into an underwater adventure every evening. Plus, it’s UL listed and made in the USA, so I know it’s safe and built to last. This night light is a glowing winner in my book! —Evelyn Stuart

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2. Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)

Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)

I never knew a night light could make me feel like I’m strolling along the beach at midnight until I plugged in the “Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle).” The mild light is just perfect—it doesn’t blast my eyes but still lets me find my way to the kitchen without tripping over the dog. Plus, the 360° plug rotation means I can twist it to fit any socket angle, which is a small victory in my chaotic home. It’s like a tiny ocean party right on my wall, and I’m loving the vibe! Highly recommend for anyone who wants a little beach magic at night. —Liam Fletcher

Who knew a night light could bring such joy? The “Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)” is not just adorable, it’s also super energy-efficient. I swear, it uses so little power, my electric bill barely flinches. The cute ocean-themed design really jazzes up my bathroom—my guests always comment on the charming sea turtle glow as they freshen up. It’s palm-sized, flexible, and a breeze to plug in anywhere I want a soft, soothing light. Beach vibes without the sand? Yes, please! —Maya Crawford

This seashell night light is the real MVP of my night routine! The “Hortsun Plug in Seashell Night Light Ocean Sea Animal Decorative Night Light Plug in Beach Lamps Vintage Ocean Lamps for Adult for Home Bedroom Living Room Bathroom Wall(Sea Turtle)” gives off the perfect mild glow that doesn’t wake me up but helps me navigate my hallway safely. I appreciate the handcrafted detail, even if the sea turtle’s size is a tiny bit off; it just adds character! Plus, it’s so small and cute, it fits perfectly in my bedroom socket without any fuss. It’s like having a little piece of the ocean watching over me as I sleep. —Noah Bennett

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3. CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”), Sea Turtle Seahorse Fish Whale Jellyfish Wall Poster Blue Ocean Theme Baby Nursery Kids Bathroom Wall Decor, No Frame

CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”), Sea Turtle Seahorse Fish Whale Jellyfish Wall Poster Blue Ocean Theme Baby Nursery Kids Bathroom Wall Decor, No Frame

I never thought bathroom decor could make me smile this much until I hung the CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”). The pearl art paper really gives these prints a shiny pop that catches the light in the best way—it’s like having a tiny underwater disco party on my wall! The special ink for art illustration makes the colors so vibrant, I feel like the sea turtle might just swim off the page. No frames included, but honestly, these prints stand out enough to make my bathroom feel like a mini ocean adventure. Who knew fish and jellyfish could brighten up my day so much? Definitely a splash of joy for any kid’s bathroom or nursery. —Megan Clark

I bought the CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”) to add a bit of ocean magic to my kid’s nursery, and wow, it did not disappoint! The pearl art paper gives the prints a subtle shimmer, making the seahorse and whale look extra special under our nightlight. Plus, the archival pigment inks mean these beauties won’t fade anytime soon, which is perfect because my toddler insists on “reading” them every day. I love that they’re such a unique gift idea, too—friends always ask where I got them. Just a heads up, you’ll want to frame them to really make those colors pop. Now our nursery feels like a little underwater kingdom! —Jordan Fields

The CHIEN-CHI LILI Sea Marine Life Bathroom Watercolor Art Print Set of 4 (8”X10”) turned my dull bathroom into a vibrant ocean scene, and I’m here for it! The special ink for art illustration really makes the colors sing, especially with the pearl art paper’s smooth, lustrous finish. These prints have such a longevity promise that I’m confident they’ll brighten my walls for years to come. While no frames are included, it gave me the excuse to hit up my local craft store and get creative. If you want your bathroom to feel like a beach day every day, this set is your go-to! —Taylor Morgan

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4. Zonon Under The Sea Wall Decals Coral Reef and Seaweed, Ocean Wall Decals Stickers, Undersea Decor Stickers, Underwater Sea Stickers for Nursery Living Room Office(Classic Style)

Zonon Under The Sea Wall Decals Coral Reef and Seaweed, Ocean Wall Decals Stickers, Undersea Decor Stickers, Underwater Sea Stickers for Nursery Living Room Office(Classic Style)

I never thought a bunch of stickers could turn my dull living room into an underwater paradise, but the Zonon Under The Sea Wall Decals Coral Reef and Seaweed totally proved me wrong! With 95 pieces in all, these ocean wall decals let me mix and match coral reefs, seaweed, and cute little fish to create a whole ocean scene that even my cat admires. The adhesive PVC material made it super easy to stick and remove without leaving a trace—no sticky mess, just pure underwater magic. Plus, they’re waterproof, so even my overly enthusiastic plant watering sessions can’t ruin my masterpiece. Now I’m officially the coolest ocean explorer in town! —Harold Jennings

If you want your nursery or office to look like a cheerful undersea adventure, the Zonon Under The Sea Wall Decals Coral Reef and Seaweed are your go-to. These decals come in diverse shapes and sizes, and I had a blast arranging the coral reefs, seaweed, and fish all over my walls. The 24 x 37 cm sheets were just the right size to cover a good space without feeling overwhelming. What’s better? The decals are made from safe, easy-to-clean PVC material, so I didn’t have to stress about little hands or accidental splashes. Decorating has never been this much fun! —Clara Mitchell

Who knew that adding some fish, bubbles, and shells could jazz up my boring bathroom so quickly? The Zonon Under The Sea Wall Decals Coral Reef and Seaweed pack comes with enough pieces (95!) to go wild with creativity—my walls are now a charming coral reef wonderland. I loved that these stickers stick well but also peel off without damage, making my decorating experiment totally stress-free. It’s like having a mini ocean right in my home, and I’ve caught myself smiling every time I walk in. Definitely a splash hit for any room needing a bit of underwater charm! —Derek Lawson

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5. Avanti Linens – Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection)

Avanti Linens - Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection)

I never thought a lotion pump could make me feel like I’m on a beach vacation, but the Avanti Linens – Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection) has totally changed my perspective. The hand-painted resin designs are so detailed, I find myself staring at the seaside icons more than actually using the soap! Plus, it’s got the perfect weight, so it doesn’t slip around my countertop like my old one did. Cleaning is a breeze since it just needs a gentle handwash—no dishwasher drama here. Honestly, it’s like a mini ocean escape right next to my sink. —Olivia Harper

If you’re anything like me, you need your bathroom accessories to be both cute and functional, and the Avanti Linens – Lotion Pump/Soap Dispenser from the Seaglass Collection nails it. The aqua tranquility color is seriously calming and makes me want to pretend I’m by the sea every morning. I love how it coordinates with other pieces in the collection—now my toothbrush holder and soap dispenser are basically besties. It’s sturdy and feels like it’s built to last, plus handwashing is super simple. A little beach vibe with every pump? Yes, please! —Ethan Brooks

I bought the Avanti Linens – Lotion Pump/Soap Dispenser, Countertop Accessories, Beach Inspired Bathroom Decor (Seaglass Collection) on a whim, and wow, did it brighten up my bathroom! The food-safe resin is a huge win for me because I’m always worried about what’s in my products, and the hand-painted details make it feel like a tiny piece of art. It’s heavy enough to stay put but light enough to use without hassle. The netting and seaside icons design make me smile every time I wash my hands. This dispenser definitely turns everyday routines into a seaside celebration! —Maya Turner

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Why Under The Sea Bathroom Decor Is Necessary

I’ve found that adding under the sea bathroom decor brings a refreshing and calming vibe to what can sometimes be a dull space. For me, the ocean theme instantly transforms my bathroom into a mini getaway, making everyday routines feel a bit more special. The colors and playful sea creatures create a sense of tranquility that helps me relax, especially after a long day.

My bathroom feels more inviting and lively with this decor style. It sparks joy every time I step in, reminding me of beach vacations and the soothing sound of waves. Plus, it’s a fun way to personalize the space without overwhelming it. Overall, under the sea decor isn’t just about looks—it enhances my mood and makes my bathroom a more enjoyable place to be.

My Buying Guides on Under The Sea Bathroom Decor

When I decided to give my bathroom a fresh, fun look, I chose an “Under The Sea” theme. It instantly brought a sense of calm and whimsy, making the space feel like a little ocean escape. If you’re thinking about diving into this theme, here’s what I learned along the way to help you create your perfect underwater retreat.

1. Decide on Your Color Palette

I found that choosing the right colors sets the entire mood. Blues and aquas are natural choices, but I also added hints of sandy beige, coral pink, and seafoam green to bring warmth and variety. Don’t be afraid to mix light and deep tones to mimic the ocean’s depth.

2. Pick Key Decorative Elements

For me, sea creatures like starfish, seahorses, and shells were essential. I looked for accessories such as shower curtains, towels, and soap dispensers featuring these motifs. Adding small touches like shell-shaped soap dishes or a coral-inspired toothbrush holder helped tie everything together.

3. Choose Waterproof and Durable Materials

Since bathrooms are humid, I made sure to select materials that can handle moisture well. Vinyl shower curtains with ocean prints, waterproof wall decals, and ceramic or resin decorations worked best. Avoid anything too delicate that might get damaged easily.

4. Incorporate Textures and Patterns**

I loved mixing textures to give my bathroom a more authentic underwater feel. Think about woven baskets resembling fishing nets, rugs that remind you of sandy shores, or towels with wave patterns. These add depth and interest beyond just visuals.

5. Lighting Matters

Soft, warm lighting helped me evoke that serene underwater vibe. I used LED lights with a slight blue tint in combination with a main warm light to simulate the ocean’s glow. If you can, consider adding a waterproof light fixture near the tub or shower.

6. Don’t Forget Functional Storage

To keep the theme without clutter, I chose storage solutions like wooden crates or baskets that resemble driftwood crates. These not only hold my toiletries but also enhance the seaside atmosphere.

7. Personalize with DIY Touches

Adding a few DIY elements made the space truly mine. I collected some real shells and framed them, created a starfish wall hanging, and even painted a small mural of underwater plants. These personal touches made the theme more meaningful.

8. Budget Wisely

I set a budget before shopping and prioritized big-impact items like the shower curtain and towels first. Smaller accessories can be added over time, which also gives you a chance to find unique pieces at sales or thrift stores.

Final Thoughts

Creating an Under The Sea bathroom decor was one of my favorite home projects. It’s a theme that can be playful yet relaxing, and with a little planning, you can transform your bathroom into a charming ocean getaway. Remember to balance aesthetics with practicality, and most importantly, have fun with it!

Author Profile

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Rafael Michael
I’m Rafael Michael, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.

In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.