The views inside and outside of the grotto are incredible: colorful schools of fish and waving sea grass are everywhere underwater; the inside of the grotto is otherworldly, with amazing rock formations and sunlight streaming through the cave ceiling. There are underwater surprises good and bad. You'll find a couple of smaller, adjacent caves to swim into. But, an underwater... More

It looked bigger in the movie, but it is still a fun snorkel, IF you're a good swimmer. Duck coming through the entrance as there are some sharp projections. Inside it's a big grotto with sunlight pouring in through the roof and little fish swimming all around. There was a strong current leading out through a submerged exit which required... More

Some of the best snorkeling we've ever done with large schools of beautiful fish. We found it easy to get in and out of at slack tide, but others seemed very nervous. If you are a confident swimmer, you'll be fine. Do not stay outside....the view inside is amazing.

Traveled to Staniel Cay with my family. We were a little nervous about going into the grotto. We waited until slack tide so that the water was calm- many of us are wimps and it made securing the boat easier. You can enter the grotto without going completely under water. There are so many beautiful fish! My husband and son... More

This is, of course, where several scenes in "Thunderball" were filmed. It is an easy swim and shallow snorkle at slack tide, but could be a struggle for inexperienced snorklers with a moving tide. Tons of very fat fish who divers have been feeding bread, M&Ms, goldfish,etc., for many years. They swim in schools and approach divers looking for a... More

If you are in the Exhumas take the time to go to to Thunderball Grotto. Check the tides before you go, the less experienced snorkeler you are the more important it is to go at low tide. Planning for slack tide, one hour on either side of low is when there is the least current and most headroom to get... More

There is something unreal about snorkeling through the picturesque ocean waters in the cave of Thunderball Grotto. The crystal clear waters provide an ideal setting for spotting the brightly colored fish that flutter by throughout the cave. Staying on the island of the Exumas the one thing that I could hardly wait for was the experience of swimming in a... More

Wass a great first snorkeling spot for any beginner just make sure it's low tide. Would recommend high tide for anyone experienced

What a beautiful and romantic experience to see many types of fish with sun streaming down into the cave. If you enter at current slack water and low tide it is the easist. My husband and I had the cave to ourselves and it was magical!