If you want a gorgeous beach, then you could skip rockaway. If you want some character with your sun, then get in this sand. Rockaway is consistent with its surf, and is the easiest beach to get to from Manhattan.
Definitely the most remote beach I've been on. You need to find someone with a boat in Utila that will take you. Bring anything you would need for the day cause there is absolutely nothing on the island but palm trees.