There is a tradition with cruisers to leave a name plate on Boo Boo hill, the highest point on Warderick Wells. We looked for our Chasseur plate from 2011 but didnt find it in the rubble.
The park is a great place to relax and enjoy the islands in as natural a state as possible these days. If you come, note there is no fresh water, no trash disposal, no store etc. But there is weak wifi! A bit expensive but if you gotta have it, you can get it. We have an Iridium Go and mail service through Ocens. For a quick email update, the sat phone approach is cheaper than buying wifi time. But for an hour on Facebook, get the wifi for the day.
The heart of the park is the horse shoe shaped mooring field at Warderick Wells. 16 or so balls arrayed in a narrow channel with swift current. You must call ahead to reserve/take one of these. See there web site to get the full story, maps, instructions, etc.
Best to arrive at slack unless you are pretty good at close quarters maneuvering in current. Well maintained gear. I dove on mine. 1″ rode to 1″ SS chain to large ring buried in the coral. I have never heard of one failing that was in good condition to begin with. But given the current, I have watched some boats run over the floats so I bet some get chewed up regularly.
The channel is deep, but narrow. Each of the balls is rated for a certain length boat. As you swing with the current your stern will pass over the shoals. Just step off the swim platform to 3 feet of water. Meanwhile your rudder will be in 10 feet. Disconcerting until you realize that the park folks have been doing this for a long time. Dont fib about your LOA.