Hard to penetrate wrecks without the coarse.
Can be done at your own risk.
With the training comes confidence. Worst thing that can happen in coarse is you find out you do not like it. The instructor is there to keep you safe durring training.
Twilli has dove many springs in FL. Twilli advanced open water PADI, Twilli gav consideration to becoming NACD.
Twilli dove the devil's eye and "ginnie springs" Twilli dove the grotto Twilli dove troy springs and Twilli dove the jug at ittatuknee (sp). Twilli made many dives and did case studies on divers that died in FL springs in 1970's