is located 15 kilometers starting from Mazatán, where the sanctuary of the Virgen de la Concepción is located. It Barra San Simón is a wide beach with lush vegetation, streams and a variety of seabirds. The side facing the open sea has strong waves, which gives the estuary is dead calm waters or sea. It owns large tracts of mangrove communicated by natural channels with the Reserve Crossroads in the Las Palmas. From the city of Tapachula 14 kms are traveled by road to the turnoff No. 200 in the town Alvaro Obregon, where walking 12 kms more that take you to the municipal seat of Mazatan, which subsequently paved walking 8 kms to reach San Simon bar, about 1 hour of travel.