Undarra, Queensland
Had breakfast sitting outside under the annex before meeting up with our tour guide for our tour through the lava tubes.
The lava tubes were formed by a 'Sheild Volcano' (lava volcano) and the lava has flowed over 1550km along the ground in all directions-generally taking the path of least resistance!
The tubes are formed when the top of the lava flow is cooled by air, creating a crust.
Inside the hot lava continues to flow and drain into the river, thus creat...