Located in the district of Venado, 3 km to the east, on the road to Upala, only 67 km from Ciudad Quesada. The Venado caverns where discovered in 1962, when the first expedition was made to the 350 meter cave and in 1969 when three explorations were made and they discovered 1.550 meters of 8 different caverns. In 1991 another exploration was made and they found four more caves, the total area of caves that have been discovered is more than 2000 meters. In the different caves there are stalactites and stalagmites and there is enough room for tourists to be able to go in and see them. You can explore this area for, 5 US$ entry, they are situated 4 km to the south of Venado. You can contract local guides in the village, or enroll on one of the circuits that the local hotels organize in Caño Negro or La Fortuna.
There is a bus that leaves in the afternoon from Ciudad Quesada. Before you get to San Rafael; the route crosses an Indigenous Reserve of the Guatuso. In the rainy season, you can rent a boat to navigate the Rió Frio from San Rafael to the Caño Negro Refuge for Forest Wildlife. Some 5 km to the northeast of Guatuso, there is a 10km road which begins with a sign that says “Los Teñideros.” This route leads to the Río Celeste.