Amazing trip. Captain Ron and his wife were very accomodating, took us in an 6:30am tour, even though we were the only customers that morning. They were very knowledgeable about manatees, took nice photos, gave us wetsuits, hot chocolate. Highly recommended. They only take max of 6 people to make it personable, somebody is in the water with you all the time and show you things.
We recommend early morning for the best experience. When we arrived it was us and 4 other people from a different boat, we had the whole place for ourselves, manatees were more curious, came play with us. By the time we were done (around 9-9:30) the place was mobbed already. It was worth waking up so early.
They offered us a memory stick with the photos for thirty bucks.
Please have in mind that every experience is different, it depends on temperature, colder it is more manatees in Tree Sisters springs.