Cap Blanc Aquarium
1 / 10

Cap Blanc Aquarium

4.4
·2k reviews·Sant Antoni de Portmany, Spain

Discover marine wonders in a natural sea cave, a former lobster hatchery turned recovery center. Unique and serene.

Highlights

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Late afternoon

Quieter, more peaceful viewing

CrowdLow
Loading map...
Cap Blanc Aquarium

Cap Blanc Aquarium

Best Time

Late afternoon

Quieter, more peaceful viewing

CrowdLow
Highlights

Highlights

Must-see attractions

Discover marine wonders in a natural sea cave, a former lobster hatchery turned recovery center. Unique and serene.

4.4
(2k reviews)

"A very unique place in a small natural cave, not the standard aquarium you can find elsewhere."

Vertical photo
TIP

Unique Cave Experience

It's a natural cave, so you might need to duck! A truly unique aquarium setting. :woman_shrugging:

Short but Sweet Visit

Expect to spend only 15-20 minutes here. Best combined with other activities. :stopwatch:

Third hero image

Quick Facts

Hours

Rating

4.4 · 2,029 reviews

Type

Aquarium

👶 Good for kids

Highlights

Discover the most iconic attractions and experiences

The Cave Aquarium

The Cave Aquarium

Sant Antoni de Portmany

Explore marine life within a natural sea cave, a former lobster hatchery. Unique and serene.

Mediterranean Marine Life

Mediterranean Marine Life

Aquarium tanks

See local fish, rays, octopuses, and even small sharks in their natural habitat.

Scenic Coastal Location

Scenic Coastal Location

Sant Antoni de Portmany coastline

Enjoy beautiful sea views and a charming setting near Cala Gració.

Your AI travel agent

Plans like a pro.
Thinks like you

Start Chatting

Planning Your Visit

A Natural Wonder in a Cave

Discover a unique marine experience in a natural sea cave. This isn't your typical aquarium; it's a fascinating glimpse into the Mediterranean's underwater world, once a lobster hatchery. Plan for a short, impactful visit.

Timing Your Visit for Tranquility

While small, the Aquarium Cap Blanc can get busy. Consider visiting during off-peak hours or at the end of the day for a more serene experience. Check local schedules for potential events or closures.

Best Times

When
Late afternoon
Why
Quieter, more peaceful viewing
Crowd
Low
When
Weekdays
Why
Fewer crowds, relaxed atmosphere
Crowd
Low

Insider Tips

from TikTok, Instagram & Reddit

Sabías que hay un pequeño Acuario Natural en Ibiza?? Y está en el interior de una cueva marina donde hay muchas de las especies que hay en la isla 🐠🏝️ Se llama Aquarium Cap Blanc y está en San Antonio! Si eres residente la entrada es gratuita😊 También tiene un pequeño restaurante, donde la comida está buenísima, sobre todo las sardinas!
ibizasinfiltro
11K likes • 350.9K views

Unique Cave Experience

It's a natural cave, so you might need to duck! A truly unique aquarium setting. :woman_shrugging:

Short but Sweet Visit

Expect to spend only 15-20 minutes here. Best combined with other activities. :stopwatch:

🐠🌊Did you know Ibiza had an aquarium? It’s not like the big, commercial Sealife style ones though… Explore the hidden gem of Aquarium Cap Blanc, nestled in a natural cave by the sea. Perfect for a family day out, this unique aquarium showcases the vibrant marine life of the Mediterranean, including colorful fish, playful octopuses, and more. You even get the chance to feed all the fish. Once yo...
itshayleyparfitt
47 likes • 3.5K views
Visita imprescindible en Sant Antoni 👉 Aquarium Cap Blanc CREM ¿Sabías que es un antiguo criadero de langostas? 🙂 #VisitSantAntoni #SantAntonidePortmany #Ibiza
visitsantantoni
168 likes • 3.2K views

Resident Discount

Ibiza residents often get free entry! Check for local discounts. :moneywithwings:

Easy to Reach

Accessible by bus to San Antonio, followed by a pleasant walk. 🚌

Aquarium Cap Blanc in Ibiza… A lovely little natural aquarium with salt water for the fish. Located in Sant Antonio de Portmany, not only are there local mediterranean fish, but also rays, octopus and even a little shark… #travel #travelblogger #adventure #summer #explore #wanderlust #vacation #fun #sea #nature #sun #islasbaleares #balearicislands #illesbalears #spain #ibiza #beach #fyp
strawberryblonde_abroad
5 likes • 265 views

Tips

from all over the internet

Unique Cave Experience

It's a natural cave, so you might need to duck! A truly unique aquarium setting. :woman_shrugging:

Short but Sweet Visit

Expect to spend only 15-20 minutes here. Best combined with other activities. :stopwatch:

Resident Discount

Ibiza residents often get free entry! Check for local discounts. :moneywithwings:

Easy to Reach

Accessible by bus to San Antonio, followed by a pleasant walk. 🚌

Good Cause

Entry fee supports marine recovery efforts. A visit with purpose! ❤️

What Travellers Say

4.4
(2k reviews)

Reviews Summary

Visitors praise Aquarium Cap Blanc for its unique natural cave setting and the opportunity to see local Mediterranean marine life. It's noted as a charming, short visit that supports conservation efforts, though some find it very small for the price. The scenic location and friendly staff are also highlighted positives.

"The aquarium is set in a really nice location with a really nice view and easy to get to. The aquarium is very unique and was a nice experience, and the staff there were very nice. If you are going to go there expect a 15 to 20 minute stay."

Logic

"A very unique place in a small natural cave, not the standard aquarium you can find in many other places in the world. Even taking plenty of photos though it won't take more than 15/20 minutes of your time so the best is to visit as part of an island tour or a boat tour."

Roberto G.

"cute little trip out, got the bus to san antonio and then walked half hour to here and was easy to get too. fish appear tl well looked after and the food and drinks are easy going."

Elleanor J

What People Like

Unique cave setting
Local marine life
Conservation mission

What People Dislike

Very small size

Frequently Asked Questions

🚇 🗺️ Getting There

You can take a bus to San Antonio and then enjoy a scenic 15-30 minute walk along the coast to reach the aquarium. Some visitors mention walking from Caló des Moro. InstagramReddit

While specific parking details aren't widely mentioned, the area is accessible by public transport and walking, suggesting limited dedicated parking. It's best to rely on public transport or walking. Reddit

Yes, it's a pleasant walk of about 30 minutes from San Antonio. The route is described as easy to follow. Reddit

The path is described as walking along rocks and a trail, which might require some care. Some visitors note you may need to duck to enter the cave itself. InstagramReddit

Many visitors recommend combining a visit to Aquarium Cap Blanc with a boat tour or as part of a broader island exploration for a well-rounded experience. Reddit

🎫 🎫 Tickets & Entry

The entrance fee is typically around €5-€7 per adult, with children often entering for free. It's advisable to check the latest prices upon arrival. InstagramReddit

Yes, Ibiza residents can often enjoy free entry to the aquarium, making it a great local attraction. TikTok

Given its small size and the nature of the attraction, advance booking is generally not required. Tickets can usually be purchased upon arrival. Reddit

Opening hours can vary, but it's often recommended to visit towards the end of the day for a quieter experience. It's best to check locally for current operating times. Reddit

Many visitors find the fee worthwhile, especially considering the unique cave setting and the fact that the proceeds support marine species recovery efforts. Reddit

🎫 🐠 Onsite Experience

You can see a variety of Mediterranean species, including groupers, sea breams, sea bass, colorful wrasses, rays, octopuses, and even small sharks. TikTokInstagram

Most visitors find that a visit takes around 15 to 20 minutes, as it's a small but unique attraction. Reddit

Yes, it's a great short excursion for families. Children are often fascinated by the marine life in the natural cave setting. TikTok

It's located in a natural sea cave that was historically used as an underwater lobster hatchery by local fishermen. It's now a marine recovery center. TikTokInstagram+1

There's a small restaurant and a terrace with a jetty where you can enjoy food and drinks with a view. TikTokInstagram

📸 📸 Photography

Yes, while it's a cave, there's natural light and the marine life provides great subjects. Be mindful of reflections on the glass. Instagram

Focus on the diverse marine species, the unique cave environment, and the scenic views from the terrace. Instagram+1

No specific restrictions are mentioned, but always be respectful of other visitors and the marine life. Instagram

The lighting is natural within the cave, which can be atmospheric. It's advisable to have a camera or phone that performs well in lower light conditions. Instagram

A wide-angle lens could be useful for capturing the cave setting, but a standard lens will work well for close-ups of the marine life. Instagram

You may also like

1 of 2
Cap Blanc Aquarium (2026) – Best of TikTok, Instagram & Reddit Travel Guide