Sandboards and toboggans are available for rent
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Australian sea lions are at Seal Bay Conservation Park. Located in the south of the island, this park gives you the opportunity to see wild Australian sea lions resting on the beach before returning for feeding in the sea. You can take an unguided walk along the boardwalk and to the lookout at any time. The beach is only accessible with guided tours.
Parndana Wildlife Park
If luck isn't going your way, and you don't want to leave the island without seeing the wildlife, try Parndana Wildlife Park. You'll be able to walk amongst the animals and have the kangaroos crowd around you while you feed them.
A nice set of caves. Probably nothing here of particular interest if you have visited limestone caves in the past.
True to their name, the rocks have remarkable formations. You can climb under them, over them and around them, and they really are interesting. The formation is around 500 m from the carpark, and is wheelchair accessible. Don't let the kids run ahead, as the formation is on the edge of a lichen-covered cliff, which gets steep deceptively quickly.