
Thanks Matt.
No I won't be lining the cave interiors with cork bark - truthfully I hadn't thought of that, but I'm not sure it's necessary - and it would be a lot of work for little visual return.
The interior walls of the caverns and tunnels will be lightly carved and 'iced' in places with wall filler, to give some texture and a striated rocky impression. You're absolutely right - if I wanted to clad the interior cave walls with cork all round and still allow a figure on a 25mm round base to pass, the tunnels would need to be three times as wide - which would mean there'd be virtually no foam structure left holding the whole thing together!

I will be using sections of cork bark along the escarpment, and particularly around the cave entrances. Well, that's the notion anyhow. We'll see how it plays out...
