Bogue Chitto National Wildlife Refuge

It can be done but it's a brutal hike

I'm not sure. I'd call them directly for that information.

From the website: "Primitive camping is permitted within 100 feet of designated streams. This includes either bank of the Bogue Chitto River, Wilson Slough, West Pearl River south of Wilson Slough, and Refuge lands along the East Pearl River and Holmes Bayou. No campsite can be left unattended longer than 24 hours. Campsites cannot be established longer than 14 consecutive days. Campers must mark their campsite with the owner’s name, address, phone number, and dates of occupancy in a conspicuous location at the front of the tents. The Refuge is closed to camping when the Pearl River reaches 15.5 feet on the gauge at Pearl River."

Yes it will be closed

If it's closed it's due to high water.