San Juan River (Calamba)

The San Juan River (Tagalog: Ilog ng San Juan), also known as the Calamba River, is a river system in Calamba, Laguna, Philippines. It is one of 21 major tributaries of Laguna de Bay and is regularly monitored by the Laguna Lake Development Authority (LLDA) through one of its 15 river monitoring stations. Along with the San Cristobal River, it is one of the two major rivers of Calamba that drains into Laguna de Bay. Its watershed area covers Calamba in Laguna and the municipalities of Santo Tomas, Tanauan, and Malvar in Batangas.

Flows through: Philippines.

River data from Wikidata (CC0); lengths normalised to a common unit.