Coconut Joes, XQ's, Pepper's, or maybe Craft F&B - none of those have a view though.
The Marriott had a bar/restaurant on their beach area but we never went so can't comment other than it looked expensive.
If you are willing to do a cab then Macabuca would fit the bill. Reasonably priced (for GC), casual, great view and you can watch all the night divers doing their thing.
Tukka also has a waterfront spot on the west side, but it's facing into the lagoon/bay (?) so wouldn't be ideal for sunset.
The Marriott had a bar/restaurant on their beach area but we never went so can't comment other than it looked expensive.
If you are willing to do a cab then Macabuca would fit the bill. Reasonably priced (for GC), casual, great view and you can watch all the night divers doing their thing.
Tukka also has a waterfront spot on the west side, but it's facing into the lagoon/bay (?) so wouldn't be ideal for sunset.