Sontecomapan Lagoon
Sontecomapan Lagoon lies on the Gulf coast beneath the mountains of Los Tuxtlas. Streams descend from the slopes into its shallow waters, which are bordered by mangroves and connected to the sea by a narrow channel. A sandbar and rocky ground frame the opening. The lagoon forms a sheltered meeting place of freshwater and seawater on a coast where volcanic hills rise close to the Gulf.