My mate had the kayak out of the skip at his work but he assures me it floats :lol:
Try it out on a river closer to home before lugging it all the way up there :lol:
I'm in two minds on this generally....
On the one hand we see an awful lot of crap and tat left in mines from previous "projects" that never got off the ground or failed or ran out of steam or whatever.
On the other hand who are we to stop anyone having fun and trying new things. You and your kayak have as much right to be there as someone doing the CRTT or someone on a photography trip or someone studying industrial archeology or a 101 other things that people do in mines.
I guess the unwritten rule is if you take anything in somewhere then you should always be prepared to retrieve it and dispose of it properly if it doesn't work or if you lose interest :smartass: