How is the drink service? BYO mugs?

You can purchase in the gift shop or across the street at the mini market (cheaper) and pharmacy.

 

I also bring a double-walled flip-lid water bottle for the pool, as if you just bring the plastic bottle of water from your room down to the pool, it will get warm and nasty in about 15 minutes, and then you have to go to the bar for water. I am more likely to drink water if I don't have to go to the bar to get it.