We took both the Ten Thousand Islands boat tour and the Mangrove Wilderness boat tour and both are excellent. The Ten Thousand tour takes you out to the bay where you see dolphins along side the boat, eagles, and many other birds on the islands. The Tour Guide is excellent and it is well worth the price. My wife and I were the only passengers on the 3:30 tour but the tour went anyway. The Mangrove Wilderness tour takes you inland into a very narrow canal with thick mangroves on both sides and over the canal. You see alligators (up close, within 2 or 3 foot of the boat!) and many birds. The Tour Guide is excellent, and explained everything really well. The two tours are very different and I recommend both.