The Grotto in Boracay island, Philippines is a famous landmark in the area. Virgin Mama Mary is the only saint found on the Grotto. It is located near the shore in station 1 as shallow waters surround this iconic magnificent structure.
You can go up for photos and all, there is no limit or restriction whatsoever although it is not a good idea to go there at night time or if there is bad weather. You might fall off balance even if the waters are shallow and you might hit yourself against the rocks.