The overlook atop the Cerro de San Basilio is the best spot to orient yourself to San Blas [1]. From this breezy point, the palm-shaded grid of streets stretches to the sunset side of El Pozo estuary and the lighthouse-hill beyond it. Behind you, on the east, the mangrove-lined San Cristóbal river estuary meanders south to the Bay of Matanchén. Along the south shore, the crystalline white line of San Blas’s main beach, Playa el Borrego [2] (Sheep Beach), stretches between the two estuary mouths.
Links:
[1] http://www.moon.com/destinations/puerto-vallarta/the-nayarit-coast/san-blas-and-vicinity
[2] http://www.moon.com/destinations/puerto-vallarta/the-nayarit-coast/san-blas-and-vicinity/beaches