Upana falls are located at upana caves. The Upana Cave system is located about 17 km west of Gold River, on Head Bay Forest Rd. These caves are just awesome to hike in, and you can find everything here in formations and cave life like crickets and spiders to photograph. The highlight of this site has to be the waterfalls.
There are fifteen entrances into the system that are known. The length of the cave passages put together is about 450 meters. The individual caves vary from about the single room size right up to passages of considerable length made up of multiple rooms. You can hike the caves by yourself or take a guided tour with a spelunking club.
These caves are quite beautiful and well worth the hike but bring warm clothing as even in the summer months, it’s chilly in the cave.