This aptly-named eatery is a welcome respite from El Centro's busy streets. A small wooden bridge leads into a palapa, which is colorfully decorated with turquoise chairs, mosaic flooring, seashell lamps, and a bamboo bar. Diners can relax to the sounds of a cascading waterfall, skirted by palm trees and tropical plants. House specials include grilled seafood with rice, fish fillet with coconut cream, and smaller dishes like ceviche or aguachiles (spicy lime shrimp). Many of the dishes can be prepared with your choice of mango, tamarind, or guava salsa. Open only from 1 to 7 pm, El Oasis is popular with the locals. Note that menus are in Spanish, and the staff doesn't speak much English.