The Three (3) locations during the race to check-in: The first one is entering the Harbor—off Fort Zach; The first Check-point is a boat with large orange buoy on the bow—anchored before entering the Harbor.  The support boat/kayak will need to call out their number to staff on board.
The Second one is exiting the Harbor under Fleming Key.  The check person will be on top of the the bridge.
The Third check-point is under the Cow Key Bridge. The check person will be located under the bridge looking for numbers.  Remember to call out the number.
Missing a check-point will disqualify a swimmer; a swimmer checking-in without support boat will be immediately pulled from the water.  If you are having technical issues with a boat/kayak go to the nearest “Race Support Boat” and they will assist—either giving you a kayak to continue or providing first aid and/or water and snacks—whatever is necessary for the situation.