Geography and context
Curuzú Cuatiá, in the south of Corrientes Province, hosts three flooded quarries used for recreational diving. Unlike the Greater Buenos Aires tosqueras, these quarries are cut into granite/basalt rock, which gives them noticeably better visibility.
It is one of the deepest accessible freshwater dive sites in Argentina’s Litoral region.
What you’ll see
The three quarries reach up to 21 metres deep, making them suitable for night dives and intermediate-level training. Wildlife includes freshwater fish and aquatic turtles, particularly active during night dives.
The granite/basalt bottom does not release particles into suspension, so visibility holds up better than in tosqueras. Water temperature is warm, in line with the subtropical climate of Corrientes.
Site conditions:
- Maximum depth: 21 metres
- Visibility: better than tosqueras (granite/basalt rock)
- Temperature: warm (subtropical climate)
- Night diving: regular practice, due to active wildlife
When to go
The subtropical climate keeps water temperatures comfortable most of the year. Summer can be hot but the water is still pleasant. Trips are coordinated with regional dive schools.
How to get there
Curuzú Cuatiá lies on National Route 119, about 270 km from Corrientes city. The town is in the south of the province, accessible by road from Mercedes (the gateway to the Iberá Wetlands), which makes it possible to combine both destinations on the same trip.
Access and regulations
The quarries are private or semi-private. Access is mediated by the schools and operators that organise the trips. They are not open public sites.
Technical tips
The dark granite bottom provides good visual contrast for underwater photography and makes it easier to hold depth reference. Visibility is significantly better than at the tosquera quarries of Greater Buenos Aires and improves further in autumn and winter (April–August), the best season for this site. The warm water temperature, even during a Corrientes winter, means a 5 mm wetsuit is comfortable for most of the year. These quarries are ideal for intermediate-level training and night diving practice: turtles and other wildlife are most active after dark. Access is private; always arrange the visit through a registered dive school before travelling.
Sources
- Caribbean News Digital — Underwater Argentina (three quarries, 21 m depth, wildlife, night diving)
- Oceanica Buceo — granite vs tosca quarries (visibility comparison)