My best friend and I loved every single second of our adventure on Crystal River with Get Up And Go Kayaking. The tour guide (I believe his name was Mark) was knowledgeable, comical, and very kind. He made sure we all got into our kayaks safely and was helpful in getting in and out when the time arrived. The kayaks themselves were awesome, and we could see every bit of life below when we got into the sister springs. In our group however, there was an elderly couple who weren't entirely prepared for the kayaks and the moment they had trouble, Mark took care of them by tying their kayak to his and paddling both his own kayak, the weight of theirs, and the two passengers, without missing a single beat. He ensured their safety without compromising the quality, nor time, that we spent on Crystal River.
The river itself is absolutely gorgeous, and protected properly. Such a beautiful part of nature that hasn't been destroyed by travelers, and I hope that fact remains. I would absolutely suggest that people interested in making the visit should be mindful both of protecting the beauty of the river, as well as mindful of their own abilities, because maneuvering the kayak is a workout. Nonetheless, I hope to return one day to this surreal bit of beauty that is tucked away. Ps- don't forget cash to tip the great tour guides like Mark, and do yourself a favor and bring sunscreen.