Dive 2 hours before high slack tide (2 hours is all you get). BEST TALK TO THE LOCALS. VERY DANGEROUS PLACE. If it's done during tarpoon season, if the tide don't get you, the great whites will! Never actually dove it, because I didn't know the tide tables, and it's better I didn't!  School of over 300 Great Whites off shore (found out later from the dive shop).  It's not as great as when the dock was used years ago, but fish still school there. It's about 40' deep, and not for the beginner. -- Mad Marl

Go to the end of the island of Boca Grande. Park in public parking. Follow the beach around the point. Find Phosphate Dock (you can't miss it!)

Phosphate Dock

The water was crystal clear! We saw a lot of fish, turtles and SNAKES! Our camp site was big and clean (they emptied the garbage can every two hours). Our site was right on the river. We had bad campers across from us. They played loud music and let off firecrackers until 3Am. They got expelled from the park the next day, when a flood of complaints hit the office. The snorkeling was great (did not get to try diving).

Sam in Jacksonville's Dive Log

@sam_in_jacksonville

1 dives