El Potosí Facebook Page TripAdvisor Page Address El Potosí 320 Ave. Fort Martelo Humacao, PR, 00791 Contact (787) 852-0887 View on a Map Get Directions About El Potosi is a small, but charming Mexican restaurant in Humacao. The food is well known and appreciated for being authentic and inexpensive. Videos & 360° Tours Amenities Payment Methods Accepted Meetings Facilities Meeting Rooms sq. ft.Largest Room Sleeping Rooms sq. ft.Meeting Space Download Floorplan Event Spaces / Meeting Rooms Room Sq. Ft. Theater Classroom Banquet Reception Deals