The Blue Heron Bridge dive site is no longer a secret, as it has been the source for many marine fish and critter ID books, as well as training dives for thousands (millions?) of scuba divers. The site is located in Phil Foster State Park and features heavily encrusted bridge pylons on the Southern and Eastern side of the park, as well as a Snorkel Trail featuring all of the colorful reef fish you might expect to have to take a boat to go see. The secret is the tide. Because the park is located in the intercoastal waterway, you have to time your dive with the incoming tide. The idea is to be in the water 30 to 45 minutes before the tide crests so that you get the best visibility. If you’re planning a trip to Blue Heron Bridge and you can’t dive with us, check out the Blue Heron Bridge tide chart for more information. Divers regularly report seeing exotic animals like seahorses, octopus, pike blennies, sea turtles and sharks, along with angelfish, surgeonfish and grunts. The only “problem” with this dive site is it’s popularity. There is limited parking, and the conventional wisdom says to show up at least two hours before high tide if you want to find a parking spot.