La Fondita
Ask anyone who has spent a significant amount of time in the Hamptons where the most authentic Mexican joint is, and most will agree that La Fondita is the one and only. La Fondita is a very casual combination take out/sit down place, so don't expect to be greeted by an waiters. Ask for a fish taco, obviously with a side of guacamole, take your pick of cervezas and choose a table out back under the shade. Once your number is called and you get your first taste of the Mexican street food you probably won't be going to any other Mexican spot for a while.
La Fondita
74 Montauk Highway, Amagansett
[Photo via]