Sharpe Down's Marina is a boat ramp facility located on Lake Sharpe in Hughes County, South Dakota, providing access for recreational boating and fishing.

The marina experiences slower ice-off conditions compared to other upper Lake Sharpe access points due to minimal water current in the area, making it one of the last ramps to fully open each spring season.

The facility is situated within LaFramboise Island and serves as a key access point for the upper end of Lake Sharpe once seasonal conditions permit full operation.