Beach Ramp 4 at the campground is also open, and the news release lists several other open ramps for OHV access to the beach.
Coquina Beach, north of Oregon Inlet, opened late last week, including the bathhouse and parking, and lifeguards are on duty during regular hours.
The three other Cape Hatteras campgrounds remain closed due to damages from Hurricane Irene, the September 2 news release says. Bodie Island Lighthouse and all other park facilities on Hatteras and Ocracoke islands remain closed, as well.
Hatteras Island south of Oregon Inlet and Ocracoke Island are closed to the public, and residents began a staggered return Sunday.
Storm damage in the park includes water damage to numerous facilities, damaged rooftops, scattered debris and tree limbs, and missing or damaged boardwalks, signs, posts and fencing materials.
Visitor centers and campgrounds at Cape Hatteras National Seashore, Fort Raleigh National Historic Site, and Wright Brothers National Memorial were to close by 5 p.m. or earlier Wednesday, as was ocean-side beach access for off-road vehicles at Cape Hatteras.
The reservation system for Ocracoke Campground has also been suspended until further notice.
Earl was expected to bring high winds to the Outer Banks but not to make landfall.