tour for the travel show. there's more to the cairngorms than just walks and wildlife. adventure companies offer zip lining, canyoning and something called white water tubing — riding one of these rubber rings downriver. i was hoping to give it a go, but the conditions were a little wild. so, what was the issue about the tubing today? the river's too high, it's in flood, so it wouldn't be safe. we couldn't actually stop you, you mightjust keep going. where do the rapids end? um... the north sea. 0k, yeah, that's an issue, isn't it? well, i might not be able to get out on the river, but kevin insisted i had a go on one of their longest zip lines. i'm feeling a bit more nervous. i mean, i was quite chilled out about this, �*cause i'm like, zip wire, everyone does this, you know, kids do it, and now, looking down into that gorge, um...