The 'crying' water is a result of groundwater filtering through the porous rock strata rather than seawater ingress.
Sununga Beach, where the cave sits, is globally recognized by skimboarders for its powerful shorebreak waves.
The cave serves as a natural wind tunnel, often creating distinct auditory echoes.
The sediment inside the cave consists of coarse sand and pulverized shells deposited by high-tide surges.
The cave's formation is a product of ongoing wave refraction focusing energy into this specific coastal indentation.
Gruta Que Chora is a sea cave located at the far left corner of Praia da Sununga in Ubatuba, Brazil. The name translates to 'Crying Cave' due to the natural seepage of freshwater from the porous rock walls, which creates a constant dripping effect. The cave is formed by oceanic erosion on a coastal cliff face. Its unique acoustics and damp environment distinguish it from typical sea caves in the region. The interior features a small beach area protected by large rock formations. It is geographically situated between the larger Lázaro and Domingas Dias beaches. The site remains a natural attraction without formal commercial infrastructure inside the cave itself. Geologically, the area is composed of crystalline rock formations common to the Ubatuba coastline. The phenomenon of the dripping water is most visible after periods of rainfall.
The cave entrance looking outward toward the ocean provides the best contrast between the dark interior and the bright turquoise water.
Visit during low tide to safely access the innermost parts of the cave.
Wear water-resistant footwear with good grip, as the cave floor is constantly wet and slippery.
Check the local tide charts, as high tides can completely block access to the cave entrance.
Attempting to enter the cave during high tide or heavy storm surges, which can trap visitors against the back walls.
Do not climb the fragile rock walls; pack out all trash to preserve the cave's natural state.
