Singleton Swash is a coastal saltwater feature, specifically a tidal creek or marshy area where saltwater meets freshwater, located in Myrtle Beach, South Carolina. It is a narrow, linear water body that cuts through the beachfront, creating a distinct geographical feature. The swash is accessible from the beach, with a notable public access point in the Cabana District between 79th and 82nd Avenues North. A key characteristic for paddlers is the significant tidal influence. At low tide, the swash can be crossed on foot, indicating a shallow water level, while high tide brings in enough water for small craft. Paddlers must plan trips around these tides, as the waterway is likely impassable at low tide. The primary paddling route described is a short crossing of the swash itself, from the beach access near the Dunes Club to Ocean Annie's Beach Bar, which is only feasible during higher water.

The area is exposed to ocean conditions. A live webcam monitors the swash, providing managers with instant views of beach conditions, which suggests paddlers should check for surf and wind before launching. The beach here is generally less crowded, offering a quieter setting compared to main Myrtle Beach areas. The surrounding environment includes a saltmarsh full of wildlife, such as birds and alligators, which paddlers may encounter. There is a walkway over this marsh. Historically, the site was the location of a large Confederate salt works destroyed by the USS Ethan Allen in 1864. For facilities, the nearby Huntington Beach State Park offers amenities like picnic areas, grills, and bathrooms, though it is a separate location. The water quality is actively monitored through a partnership between Coastal Carolina University and Horry County, with instruments providing public data.