Zeleni vir (The Green Whirlpool) and Vražji prolaz (Devil's Pass) are ca. 5 km from Brod na Kupi.
Zeleni vir (The Green Whirlpool) is a spring at the bottom of a wide and shallow cave with 70 m high sheer cliffs that overhang its entrance. There is also a lively waterfall which goes down the cliffs, creating a shimmering curtain of water.
Vražji prolaz (Devil's Pass) is 1800 m long and less then 2 m wide canyon at certain points. More than 100 m high cliffs along with a foaming and roaring stream Jasle that rushesat the bottom make the walk through the canyon an unforgetable experience. At the end of the canyon there is a cave called Muževa hiža (The Man's House) with formations resulting from the effects of underground water on the limestone, and which are typical of karst. It is about 120 m long.
In Brod na Kupi you may find few agencies organizing rafting. Start is in village Sedalci and end in Brod na Kupi. Complete equipment is provided and duration is between two and three hours depending on Kupa water level.