You can find the tunnel by following the walking track at Abraham's Bosom Reserve in Currarong, it takes about an hour return. Hidden amongst the shrubbery you will find a small hole in the rocks just big enough for an adult to crawl through and about 20 metres long. If you crawl through the cave you will pop out on to breathtakingly beautiful sea cliffs on the other side. Pack a light picnic to enjoy while you rest up on the rock ledge.
Gosang's Tunnel is a great place to watch whales on the southern migration each spring.