Down's Marina Access provides boat launch facilities on Lake Sharpe near Pierre, South Dakota, operated by Downs Marina Inc. , a full-service dealer offering boat sales, rentals, and repair services.

The marina is conveniently located at 800 South Washington in Pierre, adjacent to Griffin Park which offers camping facilities, picnic shelters, and a modern fish cleaning station.

Access is available during business hours (Mon-Fri 8am-6pm, Sat 8am-12pm), making it a primary recreational hub for boaters and anglers in the area.