Hi guys, thanks so much for the quick and informative responses!
Tommy - Those Nottingham models look great, I'll try and find out who I can talk to about access, thanks very much for the link! While the project is in it's early stages, Flora, one of the members, has done some work on subterranean spaces and caves with Brazilian colleagues, examples here
. She's having an artificial cave made for an upcoming exhibition too!
Alistair - Cheers for the info about the Scottish sea caves. One of the group has done some acoustic surveys in and around sea caves on the south coast and would be particularly interested, will look them up now!
Badlad - The models are incredible! The size of the caverns are astonishing and at a different scale from we were introduced to. The quality of the textures is really great too, I think something like the gaping gill dataset would be really useful to us if it could be provided - I'll send you a PM now!