I just recently dived blue springs and really enjoyed my self. Entry is a little bit different then other springs I have dived. It is a very good idea to go to the closet parking lot to the spring entrance and suit up at your car and walk with your gear on down the 1/4 mile board walk that takes you to the closest entrance to the spring. Once you have entered the water my advise is to walk up the 3ft deep run to the basin rather then try to swim against the current because they are rather strong. When you are in the spring basin you then should put your fins on and proceed to dive. When entering the spring there is a large crack about 15ft wide and 100ft long with some tree trunks inside. Swimming down the inside there is lots of crevices. At 60ft there is the grim reaper sign OW divers should not go past this point. When exiting the spring the spring run is about 1/2 a mile long or so and is very relaxed and there is abundance of wild life ranging from large gar, brim, bass and the fish I see most are large 15 inch long sucker fish just like the ones you get for an aquarium. If you look under tree stumps and rocks craw fish might be found. Have fun!