It’s hard to get an impression of the scale of this impact crater from photos. Actually it was hard while we were stood right there on the top because you can’t judge the scale.
The internet images and the wiki page are worth a look to realise the size and amazingness of this big old hole in the ground!
There was a very detailed and informative museum and you could go on a led tour of the rim which took you about a quarter of the way round the crater. The guides were very knowledgable and it was a good visit all round.
So another one can be crossed off!