I think I have more or less decided to stay in Negril for a couple of days and try out a day pass to Hedonism if they have any available when I'm there. If I like it, I'll go back another time or two. As a general rule, it doesn't sound like my speed but I would really like to go sunbathing/swimming au naturale for at least a day or two and that looks like my only decent option. I'm looking forward to a wonderful time exploring the island but it would have been nice if there were some clothing-optional, public beaches or naturist campgrounds but I'll probably be too busy to miss them.
I had a wonderful three weeks backpacking in Jamaica ... and highly recommend it ... but sadly, didn't find any naturist beaches. I did call Hedonism to inquire about a day pass but in the end decided I just wouldn't be comfortable there and for the most part, I was just so darned busy that I didn't have much time to lament. I understand that Half Moon Beach (between Negril and Green Island) has a nude section but every time I thought of going something else caught my attention. I might have been more adventurous in a group but I was travelling solo so I try not to put myself in potentially awkward/dangerous situations. Having said that, apart from keeping my clothes on and avoiding Kingston I just took reasonable precautions and had a great experience travelling by route taxi and staying at hostels and guesthouses. All of the Jamaican people I met were friendly and interesting and I never felt unsafe so the next time you go, do yourself a favour and spend some time off-resort - you'll like it.