33 CFR § 80.750 - Sanibel Island, FL to St. Petersburg, FL.
(a) A line formed by the centerline of the highway bridge over Blind Pass, between Captiva Island and Sanibel Island, and lines drawn across Redfish and Captiva Passes parallel to the general trend of the seaward, highwater shorelines.
(b) A line drawn across the Charlotte Harbor entrance from position latitude 26°42.18′ N, longitude 070°41.2′ W to Port Boca Grande Light.
(c) Lines drawn across Gasparilla and Stump Passes parallel to the general trend of the seaward, highwater shorelines.
(d) A line across the seaward extremity of Venice Inlet Jetties.
(e) A line drawn across Midnight Pass parallel to the general trend of the seaward, highwater shoreline.
(f) A line drawn from position latitude 27°17.89′ N, longitude 082°33.55′ W to the southernmost extremity of Lido Key (position latitude 27°17.93′ N, longitude 082°33.99′ W).
(g) A line drawn across New Pass tangent to the seaward, highwater shoreline of Longboat Key.
(h) A line drawn across Longboat Pass parallel to the seaward, highwater shoreline.
(i) A line drawn from the northwesternmost extremity of Bean Point to the southeasternmost extremity of Egmont Key.
(j) A straight line drawn from Egmont Key Light through Egmont Channel Range Rear Light to the shoreline on Mullet Key.
(k) A line drawn from the northernmost extremity of Mullet Key across Bunces Pass and South Channel to Pass-a-Grille Channel Light 8; thence to Pass-a-Grille Channel Daybeacon 9; thence to the southwesternmost extremity of Long Key.