Fort Agauda is the largest and the best-preserved Portuguese bastion in Goa to control the entry into the river Mandovi and to protect Old Goa from potential enemy attacks.

The Fort houses an enormous cistern in which over 2,000,000 gallons of water could be stored, has citadel secret passageways, has the capacity for up to 200 canons and a four storeyed lighthouse.

This fort is a famous sunset viewing point in Goa. To reach the hilltop fort there is a winding 4 km road that heads east from Sinquerim beach, alternately there is steep 2 km walking path that starts just near the Marbella guest house.