We took three tours with Vallarta Adventures while we were on vacation and the Marietas Island was our favorite. The snorkelling felt a little rushed but seeing whales, dolphins and a manta ray on the way to the island was awesome. Swimming to the hidden beach was a little crowded. My recommendation to VA would be to take less people on the this trip to make it more enjoyable. If you are a weak or nervous swimmer, you probably won't enjoy the swim to the hidden beach but it is a really neat location.
We chose to get on a small boat to get an upclose look at the island and the birds that inhabit it. That was awesome! Our guide did such a good job and switched from Spanish to English seamlessly.
The only reason I wouldn't rate this tour a 5 is that Vallarta Adventures just takes too many people at one time. Trying to snorkel was really crowded, same with the swim to the beach. It would be nice if an adults only tour was offered. Other than that the crew does a fantastic job!
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