What I found, after staying at Seastar and eating and drinking at their bar and restaurant, they didn't seem to mind if I came from my room to the pool with my own beer... Then when it was done, I'd order from the bar. Also, when we stay at Catcha, we tend to eat a couple meals at the restaurant, and have drinks at the bar... they never bothered me when I walked out to the cliffs or sat in the pool with my own Red Stripe, or when I went back to the room to get a 2nd or 3rd when hanging out on their property, but not in the bar. Same at Travellers and at Treehouse, no one ever hassled me for bringing my own beers out to the beach while sitting in their lounge chairs.