South Beach, Mile 5-60, Camping
Once you reach Mile 60, you will hit Port Mansfield Channel, and there is no bridge over the channel, and no bridge back to the mainland. So, be sure you have everything you need to camp, including enough fuel to drive another 60 miles back.
A camping permit is required to camp here. You can obtain a free permit from the information kiosk at the entrance to South Beach. You must also pay the park entrance fee at the gate. Fees are assessed at how many days you want to stay. You can get a 1-day pass, 7-day pass, or an annual pass. The Interagency Pass also works.
There are no amenities along South Beach from Mile 5-60. You must pack out all your trash.
The sand is more soft along this stretch than in Mile 0-5. 4WD is required here. Many campers with RVs will bring plywood boards to drive the wheels onto. Also be aware that tides will roll in quickly, thus keep your trailer hitched and be ready to move out.
Also, stay away from the sand dunes because the sand is softer there.