The exit is like 45 min south of tampa off 75 ...
RED ROCKS
Red Rock Directions
10:00 am dive July 21st
• Take I-75 south to the North River Road exit. (It’s the one right after Jacaranda) Go south on North River Road.
• Cross over 41 & the Road changes its name to South River Road, follow that until you come to Pine Street.
• Turn left on Pine Street.
• Follow Pine Street to 776
• Cross over 776 & the street name will change to Placida Road.
• Follow Placida for a while until you get to the Boca Grande Causeway. turn right
• Follow the causeway to the toll booth ($4), after you get through the toll booth; just follow the road all the way to the 4 way stop sign (5th St. W.).
• Turn right at the stop sign & then left at the flag pole (Gulf Bvld.).
• Follow the road to the next stop sign (Gulf Bvld. & Sea Breeze Ct.).
Ahead of you will be a white, tower lighthouse (Boca Grande Range Light - 26 44’27.6”N, 82 15’46.8”W). That is the Sandspur Tower. Parking lot is located on your right, just north of that tower($2 to park all day). (Remember, you're heading south, if you pass the tower, you went too far.)
The reef is kinda small, about 1 acre in size, its 100 yards west of the Boca Grande range light. If the viz is good, you can see the reef from the shore.
(Thanks Moteman)