Absolutely fantastic; a must do if you are in the Crystal River area. I highly recommend booking River Ventures! The staff was amazing and friendly, the education on manatees and instructions were well done and super helpful. And the tour guides were the best - shout out to Mike & Krissy, they were the bomb! We saw so many manatees - around 8, and the baby manatee was super playful and gave us some kisses and nibbles. And the best time to go is super early in the morning, around 6am. You will have the water to yourself and you will have the best interactions!