Trancas is a coastal town located in the Valparaíso Region of central Chile. It is situated along the Pacific coastline, positioned between the larger urban centers of Viña del Mar and Algarrobo.
The area is primarily known for its beach landscape and serves as a destination for coastal tourism. Its geography is characterized by the interaction between the mountainous terrain of the Chilean coast range and the ocean, providing a setting typical of the region's maritime environment.