Ocean City and nearby Reboboth Beach are among the most popular vacation areas on the east coast: 10,000 residents but 10 million annual visitors! Folks from nearby metro areas flock there in the summer for the miles of long beaches and family-friendly atmosphere. The highlights of running in Ocean City and Rehoboth Beach are the beaches, which stretch for miles and feature firm sand close to the water. Each area has a boardwalk that makes for a fun run, and pleasant side streets with little traffic and typical summer beach homes. Cape Henlopin State Park, in the northern part of Rehoboth Beach, has a 3-mile paved bike path and some pleasant nature trails. We don’t recommend the main coastal road, which is busy, and not very pretty.