Oh yes, since the resort is all-inclusive, the bar is included. They had some really bright, sweet cocktails ready for pouring, but we also had beer, vodka, mojitos, margaritas, etc. Pretty much anything except whiskey. Although they do have that in the VIP bar in the lobby and for those with a black bracelet.
I don't remember what the lighting was on the beach, but I didn't pay extra for anything (although I chose not to...). I'm happy to share photos, but I can't figure out how to do it here...