Leaving camp by 7.15am, we arrived at Tunnel Creek soon after 10am. We passed through the Leopold Ranges, which were quite spectacular.
Tunnel Creek flows through the Napier Range in a remarkable natural tunnel more than 750m long – hence its creative name. You disappear into the black tunnel, and need a torch to see your way over the rocks and through the pools.

There are permanent pools along the way, and in the middle of the tunnel the roof has caved in and daylight shines through.

There are bats hanging around (!!!),

and I saw yabbies in the water pool.
It really is an amazing quirk of nature.