The Little Peninsula and Big Peninsula Tunnels are located on the Yarra River, about 14 km east of Warburton, 70 km from Melbourne, on the Upper Yarra Reservoir Rd there is a signposted turnoff to the Little Peninsula Tunnel Picnic Ground.
There are picnic facilities at the car park. From there it's a short walk to the Little Peninsula Tunnel, which was created to alter the course of the river in the goldmining era so that the prospectors could scour the river bed.
The Tunnel can also be reached from the upper car park, which is linked by a short track to the picnic ground.
Another tunnel is at the Big Peninsula, about 1 km further east along the highway, and tracks lead down from the small car park, to either side of the Tunnel. A small picnic area is at the bottom of the stairway. The Goldfields Walking Trail starts nearby.
A new Information board has been constructed at the Big Peninsula Tunnel viewing point. New wooden stairways and rails have also been built. They are popular destinations within the Yarra Ranges National Park.
Please note some areas of the walking track are undergoing restoration. Please follow the signs and safety instructions.