Long after an eruption

For Becky’s ‘UP’ square, today, I’m featuring two views of the Undala lava tubes of Queensland; outside and inside the tubes.

Outside

The longest lava tubes in the world, they are formed (to give a lay explanation) when a huge mass of lava is on the move, but cooling as it runs. Subsequent lava flows add to it and run up the sides, eventually closing over the top to form a tube.

Inside

The last eruption was about 200 000 years ago.

Not so far from Cairns, they are well worth the visit.

10 thoughts on “Long after an eruption

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.