Merge Onto I-526 W And Continue Approximately 4 Miles. Take Exit 11B Toward Sc-461 S/Paul Cantrell Blvd. Continue On Paul Cantrell Blvd Approximately 1 Mile, Then Turn Right Onto Maywood Drive. In 2 Miles, Turn Left Onto Sc-61 N/Ashley River Road. Continue Straight To Stay On Ashley River Rd. In 8 Miles Watson Hill On Left.