Took the early ( 6.45 am) tour and it was wonderful. Our guide was helpful in finding manatees, and giving us space and time to observe them. We were able to visit three sisters springs as well, it was amazing to swim in such clear water, and see the springs and fish. Beautiful all around place, especially in the early light.
I was also impressed by the quality of the equipment Gulf Coast Expeditions had for us. The coats were not expected but much appreciated, since it was a bit chilly. The wetsuits were good quality ( we brought our own snorkel and mask). All in all, much recommended.