RedactedNarrative: Operator stated he was cruising NE towards Watermark Pont at approx. 10 knots and took the green buoy to the wrong side of vessel 1 striking Spindle Rock. Operator states he was hard aground and vessel 1 was listing on its starboard side with the vessel and it's propellers sitting on Spindle Rock. Commercial salvage Sea Tow responded to the accident, removing vessel 1 from being grounded and towing it to  Castaways Marina.