Be prepared to slack docklines as higher and lower water levels will result during this event. At the least, check your boat.
Keep a weather eye out for flotsam in the water in the hours and days following the Super Blue Blood Moon. The higher tides can grab logs and debris and other floating objects off of shorelines that a " normal" tide might not.
Watch your depth. Any areas you transit that your boat can barely float in at low tide during, " normal," tides will be even shallower during the tides caused by the Super Blue Blood Moon.
Currents will be stronger. Be advised that inlets or any body of water made narrow by land masses or structures may require extra vigilance to navigate safely.