Can You Boat from Lake Marion, SC, to the Atlantic Ocean?

No Direct Water Connection Exists

Lake Marion is a large freshwater reservoir in central South Carolina, formed by the Santee Dam on the Santee River. It is landlocked—there is no navigable waterway linking it directly to the Atlantic Ocean.

Why It's Not Possible

• The Santee River flows southeast from the dam, but downstream dams and lack of locks block through‑navigation.
• The Intracoastal Waterway runs along the coast but does not connect to Lake Marion.
• Any motor‑boat journey would require trailer transport overland to reach coastal waters.

Alternative Access

Boaters wishing to reach the Atlantic from the Lake Marion area typically trailer their vessels to coastal launches near Charleston or Georgetown, a drive of 60–90 minutes.