Pearl Shell (Concha de Perla), Isabela – Galápagos

Pearl Shell (Concha de Perla), Isabela - Galápagos
Concha de Perla (Pearl Shell) on Isabela, Galápagos, is the only completely free snorkeling site with no mandatory guide in the entire archipelago, where you can swim with sea lions, sea turtles, and even Galápagos penguins in a protected lagoon of crystal-clear waters. Located just a 15-20 minute walk from Puerto Villamil, this hidden gem among mangroves offers the unique experience of free snorkeling in the Galápagos in one of the planet’s most biodiverse marine ecosystems, without the typical National Park restrictions. In this article, we’ll tell you everything about this iconic destination on Isabela Island.

Snorkel en Concha de Perla Foto por Quito Tour Bus.
What is Concha de Perla and Why Visit It?#
Concha de Perla is a natural saltwater lagoon, protected from the open ocean by volcanic rock formations and surrounded by endemic mangroves where marine iguanas live. Unlike Las Tintoreras or Los Túneles, entry to Concha de Perla is free and accessible without fixed hours or National Park restrictions, making it the only free snorkeling experience in the Galápagos.
This lagoon of calm and transparent waters, with depths of 6-13 feet, is perfect for beginners and families with children. The absence of strong currents and waves makes it a natural aquarium where marine wildlife feels safe, allowing for close encounters that would normally cost hundreds of dollars on organized tours. This is, without exaggeration, the best place for your first snorkeling experience at Concha de Perla if you’ve never tried it before.
Where is Concha de Perla?#
Concha de Perla in Puerto Villamil is located at the southern tip of Isabela, the largest island in the Galápagos.
How to Get to Concha de Perla?#
Getting to Concha de Perla is surprisingly easy and doesn’t require special transportation:
From downtown Puerto Villamil:
- Walk along the main street toward the dock (10-20 minutes).
- At the main dock, don’t get on the boats. Instead, turn left where you’ll see a “Concha de Perla” sign and a wooden trail.
- Follow the 650-foot wooden boardwalk through the mangroves (5-10 minutes).
- You’ll arrive at a small wooden platform: you’re now at Concha de Perla!
Alternatives:
Taxi from town costs $2 USD (5 minutes to the dock) or you can rent a bicycle ($5/day) and leave it secured at the start of the trail.
Remember that at Concha de Perla there are no restrooms, changing rooms, showers, or lockers. Go wearing your swimsuit and bring everything you need in a waterproof backpack. Belongings must be left in elevated places since sea lions can crush or drag objects left on the ground.
View on Google MapsCruises and adventures
Snorkeling and Guaranteed Marine Wildlife Sightings#
Perfect Water Conditions for Beginners
Snorkeling without a guide is possible at Concha de Perla. The lagoon maintains a pleasant temperature year-round (68-82°F), with exceptional visibility during low tide when the water is calmer and more crystal clear. The gradual depth allows for progressive adaptation, starting in 3-foot areas up to 13 feet in the center.
Marine Wildlife You'll See at Concha de Perla
Guaranteed (90-100% probability):
- Galápagos sea lions: Curious juveniles that swim in circles around you, performing aquatic acrobatics.
- Green sea turtles: Usually seen feeding on algae at the bottom.
- Marine iguanas: The only ones in the world that dive, you’ll see them swimming with serpentine movements.
Tropical fish: Parrotfish, damsels, surgeonfish, and angelfish in colorful schools.
Very likely in season (60-80%):
- Galápagos penguins (June-November): Especially early in the morning, swimming rapidly
- Eagle rays: Gliding elegantly over the sandy bottom
- Chocolate sea stars: Clinging to rocks in shallow waters
If you’re lucky, you might see juvenile white-tip sharks resting in caves or juvenile manta rays at the edges of the lagoon.
Best Season and Time to Visit#
Tide is crucial for your experience
Always visit Concha de Perla during low tide. The difference is dramatic: at high tide the water becomes murky with sediments and visibility decreases by up to 70%. Check the Puerto Villamil tide tables the night before and plan to arrive 1 hour before the lowest tide point for maximum visibility.
Best time of day:
- 6:00-9:00 AM: OPTIMAL – Water calm as a mirror, active marine wildlife (especially penguins), few visitors
- 4:00-6:00 PM: GOOD – Golden light for photography, pleasant water temperature
- 11:00 AM-2:00 PM: AVOID – Crowds from daily tours, extreme Ecuadorian sun
By season:
- December-May (warm): Water 75-82°F, perfect for spending hours, better for families.
- June-November (cool): Water 68-75°F, maximum visibility, higher probability of penguins.
Practical Tips and Necessary Equipment#
Where to rent snorkel equipment?
If you don’t have your own snorkel equipment, you can rent some in Puerto Villamil. The approximate cost is $5 USD per day and includes mask, snorkel, and fins.
Essential Items List
- Biodegradable sunscreen (SPF 50+): Water reflection intensifies the equatorial sun
- Rash guard or t-shirt: Extra protection for your back.
- Water shoes: Coral can cut, so we recommend protecting your feet.
- Dry bag: For phone and belongings (sea lions are curious).
- Water and snacks: There are no stores or vendors at the site.
Protocol with Sea Lions on the Trail
If sea lions block the wooden walkway (this happens frequently at sunset), do NOT try to pass them, move them, or go around them. The correct protocol is:
- Wait patiently for 5-10 minutes at a safe distance.
- Make soft noise (clapping) from 10 feet away.
- If they don’t move, return later (they usually sleep 30-60 minutes).
In the water, if they approach playfully, stay calm and enjoy the moment. Young sea lions are curious but harmless. Never try to touch them; they decide the distance of the encounter.
Precautions and Safety Rules#
Minimum distances: Maintain 6 feet with turtles and adult sea lions. Juveniles may come closer, but never touch them.
Hidden dangers: Black sea urchins hide in cracks – never place hands or feet on rocks. Fire coral can cause intense burning if you brush against it.
Lagoon boundaries: DO NOT go beyond the boundary buoys or warning signs. Beyond this begins the restricted zone where ocean currents become dangerous, especially during high tide.
Child supervision: The water is calm but children should wear life jackets and have constant supervision. Juvenile sea lions can be overly enthusiastic when playing.

Snorkeling at Concha de Perla Photo by Quito Tour Bus.
Recommended Tours#
Ready to experience the most spectacular volcanic adventure in the Galápagos? Explore our Galápagos tours and discover why thousands of travelers choose our unique experiences to discover the wonders of the archipelago.
Discover with our company all the wonders that make the Galápagos Islands a truly unique destination in the world. We have all the information you need to take an ideal trip. We recommend reading about what to do in the Galápagos, what to do on Isabela, and what is the best time to travel to the Galápagos.
Concha de Perla proves that the best experiences in the Galápagos don’t always require big budgets. This free snorkeling in Isabela offers encounters with marine wildlife that would cost hundreds of dollars elsewhere. Being the only site without a mandatory guide or paid entry, you have complete freedom to explore at your own pace, return as many times as you want during your stay, and experience the Galápagos authentically and economically.
Enjoy this lagoon that transforms into a perfectly transparent natural aquarium. Whether you see penguins in cool season or enjoy the warm waters of wet season, each visit is unique. Remember to respect the distance with wildlife, don’t leave trash, and enjoy this unique privilege responsibly. Your conscious behavior ensures that future generations can also experience guide-free snorkeling in the Galápagos in this crystal-clear water paradise.
Planning your adventure on Isabela? Include Concha de Perla in your itinerary and discover why it’s the best-kept secret for free snorkeling in the Galápagos. Learn what to do on Isabela, contact us and we’ll design your perfect trip.
Check out all our Galápagos Tours, as well as our notes about what to do in the Galápagos and what’s the best time to travel to the Galápagos. Travel with us to this natural paradise, where fun and comfort are guaranteed.


