We were there in Feb and my wife was topless at all the pools and the at the beach as well. Even went into Shillabar topless to get drinks.
We were there last fall and I do remember the sexy pool (main pool) was topless optional. I think i've seen the back pool (lagoon pool) being topless optional as well. And yes, beach was fine too. Many topless gals there. I hope they dont change this...the main pool should remain topless optional.