Costa Rican customs is located at the west end of a former railroad bridge which crosses the Rio Sixaola (a river that flows from the Cordillera Talamanca to the Caribbean Sea northeast of Sixaola) at the border, where, when crossing, tourists must clear both Costa Rican and Panamanian customs.
A former railroad bridge crosses the Rio Sixaola at the border. Costa Rican customs is located at the west end of the bridge just down some stairs from the elevated railroad grade. When crossing the border in either direction, tourists must clear both Costa Rican and Panamanian customs. It flows from the Cordillera Talamanca to the Caribbean Sea northeast of Sixaola at . 
