We went on a tour through the Undara lava tubes. We went on a bus. The tour guide explained about the old volcanos in the area. At the lava tubes the rock formations have allowed rainforest to remain in this really dry environment. We followed a walkway down into the rainforest and into the lava tubes. The tour guide showed pictures made by the colours the rocks have been stained by minerals in water running down the rock surface. Varsha really liked that. There was a big Python sleeping under some of the stairs we walked on.