What Is a No-Wake Zone?

Those two designations are not interchangeable, and boaters are cited for confusing them. Under Florida Administrative Code Rule 68D-24.002, idle speed, no wake means a vessel may proceed no faster than the speed necessary to maintain steerageway. Slow speed, minimum wake means the vessel must be fully off plane and completely settled into the water, moving no faster than is reasonable and prudent to avoid an excessive wake or hazardous condition. A boat plowing at half throttle with the bow up is off plane but not settled, and is violating a slow speed zone.

The zones exist mainly for manatee protection and shoreline safety. Florida Statute 327.46 authorizes boating restricted areas, and the Fish and Wildlife Conservation Commission codifies them county by county under Chapter 68C-22, the Florida Manatee Sanctuary Act. Miami-Dade's zones are at F.A.C. 68C-22.025, and Miami-Dade County adds its own provisions under Chapter 7 of the county code.

Miami-Dade's map is a patchwork rather than a single rule. Zones vary by location and by season, and many areas shift to stricter idle or slow speed limits during manatee season, generally November 15 through March 31, when animals concentrate in warmer water. Restrictions typically extend into associated tributaries, creeks, coves, canals, channels, and boat basins, and where a channel is marked the zone applies between the sign pairs on both sides.

You are responsible for your wake even outside a posted zone. A wake that damages a moored boat, a seawall, or a paddler is your liability regardless of your speed. On a Miami charter this mostly shows up as time: the run out of the Miami River, through the Venetian Causeway area, or into a sandbar approach is slow by law, so build that into the schedule rather than expecting the captain to make it up. Violations are enforced by FWC officers and local marine patrol, and the citation follows the operator, not the boat.