Mount Gambier: 21st November 2015.
The Blue Lake lies in the crater of an extinct volcano, and there’s further evidence of long-ago volcanic activity at the Cave Gardens, near the town centre, where there’s a ‘sinkhole’, or collapsed lava tube.
This is a favourite spot with locals, They’ve established a garden here, and hold a sound and light show most nights. That would probably have been worth seeing, but we had to be on our way.
The whole thing was somewhat reminiscent of the Jameos del Agua on Lanzarote, and I wasn’t the only one who thought that. Other members of the party said the same thing. But, it’s hardly surprising; I think both were formed the same way. Maybe the jameos are a little more elaborate, but they did have a renowned architect working on them. These aren’t as spectacular, but a lot of effort has still been made to make them much more than a hole in the ground.
Apologies for any inaccuracy. I’ve tried to explain things as concisely as I can. But, I’m not a geologist. Last time I expounded on matters geological, someone commented that I was talking a load of schist. I thought that remark was not gneiss!