Not huge but clear, with an aspect of cave diving back under the ledges. And Casa Cente, right off the ocean, connected to it, and thus with three sea turtles that day. This one is more like snorkeling a small stream,since the water is at ground, road level. Looked for a few others but did not find them. The Galapagos belong to Ecuador.
Snorkeling is part of a tour of the islands, or between dives on diving trips.
Sea Lions, Manta Rays, Sea Turtles,White Tipped Sharks and Marine Iguanas were the special things for me. Great Barrier Reef - I am not an experienced snorkeler, but I would have to recommend Heron Island on the Great Barrier Reef. A couple of flips of the flippers and you're out over the coral. They organize separate snorkeling and scuba tours, so you don't end up with the divers. At low tide you can walk out over the coral, so even non-snorkelers can get to see lots of coral life.