Exciting ride through the high surf to get to and from the sight. Great snorkelling with sea turtles, penguins, and white tipped sharks. Interesting arches formed by collapsed lava tubes. Worth the trip! More

swimming with sharks, turtles, and penguins. seeing blue footed and masked boobies and swimming with a manta ray 5 meters wide, on the way back. almost 3 hours of snorkelling, a great value. More

The one hour boat ride from Puerto Villamil was calm, and I recommend asking if you can stop at Union Rock quickly to see the small but cute colony of blue-footed boobies and sea lions. We then disembarked, which was an incredibly cool opportunity to walk on these lava formations in the Pacific Ocean! But then, the real magic happened... More

Loved the landscape, really unusual and definitely unique. Unfortunately it was high tide during our morning visit so the number of birds and animals was limited. Also the water was turbid and visibility during snorkelling was poor. Still a good experience but find out beforehand how the visibility is. More

We saw amazing fish, swam with sea turtles and penguins. The current can be strong but what a wonderful day! More

Depending on your guide (and what you request) you could have very different experiences. Ask Fabricio (Tropical Adventures) to let you swim with the giant manta rays or jump from the tunnels. Ask Roberto (090782782) for an up close and personal ride with the sea turtles. Either way, Túneles is the best place on Isabela and is not to be... More

Brilliant! The best thing to do on Isabela and we got to snorkel with lots of white tip sharks which was incredible. An absolute must here! More

We were told that we could snorkel at this site, but apparently sometimes you can and sometimes you cannot depending on ? what we don't know? We went out with a small group of people and the weather & tide seemed perfectly fine to snorkel. However we were just given a boat tour through the tunnels and were not allowed... More

We booked the trip through our hotel Casa de Marita and it was very disappointing. First we had to come back and change boats because troubles with the engine. Then the local guide had us seat in the front of the boat where it was awfully bumpy while his girlfriend was alone in the quiet rear seats (we insisted to... More