Stopped at Caiguna Roadhouse for coffee and cake. Saw the sign for the Caiguna blowhole so turned off to check it out. Drove around scrub for about half an hour looking for it then decided to turn back only to find it was at the very start of the turn off. Used to be a blowhole when the sea was here but there is no water here now. Stopped at Cocklebiddy Roadhouse to stretch our legs and drove back to check out the Murra El Evelyn Cave, a massive very impressive hole in the ground. Got some good shots and drone footage. Al was just saying how good the van had been and all you needed was good tyres when we turned back onto the highway to discover we had a shredded tyre. Back to Cocklebiddy Roadhouse to change tyre and be told that it would be another 600k's before we could get another spare. Camped the night at the Madura Pass lookout with sweeping views over the Roe Plains. Got some good photos. Two or three other campers came in but parked out of sight of us.