I went up there in October I honestly I think the island is not what its talked up to be. It was fun and scenic, but I did the majority of the trails and needed 4wd once which I probabaly would have been able to get out in 2wd if I wanted. I did not air down or think about my winch. I did all of the "harder trails" and honestly was just tired of bouncing on little rocks by the end of the day.
I did find one water hole near marble head that was very deep. Depth stick put the water about 8" over my hood, and that's a tj with 35s and about 4" of lift. Luckily just as I started to drop in we noticed some caution tape and decided to investigate first.
04 TJ - 35's, locked, 4link