http://www.carnglaze.com/concerts-events/
http://farm4.static.flickr.com/3373/3623398053_4ac291b29a.jpg
Gigged at Carnglaze Caverns in December a few years ago, below zero outside and not much more inside. After being there for five hours the cold just gets right inside you.
Amazing venue to gig but sh*te is it cold
P.S. For any Echo and the Bunnymen fans, the cover of the Ocean Rain album was shot by the underground lake and boat is still down there, but they wouldn't let us get in it and recreate the picture.
https://i.ytimg.com/vi/3OopgdEY6ZI/maxresdefault.jpg
Sorry they're links not photos.
To the OP, just crack on with cold gigs, it's character building