Analog film photography and cameras

Can someone please tell me simply what is small and cheap to buy? Essentially a film compact, ie not an SLR, that I can take on climbing trips, but cheaper than the GR1v - that M series Pentax is too big...

Cheers

Try russian rangefinders if you need it to be very cheap and atomic bomb proof.
I think you'll find what you want in the rangefinder range (see what I did there?)