GrottoGrotto is a Registered Property, Municipality of Tanay, Rizal located at Tanay, Rizal, Region IV-A.
Grotto features the shrine of the Blessed Virgin Mary encamped in a manmade stone cavern beauteously set in panoramic view. On the top, a pilgrim is treated not only with a holy commune with the Almighty but also a breath-taking view of Tanay and Laguna Lake.