Hi Rolf,
Sorry I haven't responded to this sooner, but I thought the thread had come to a natural end. Thanks for the info. It would give me an interesting variation to my route in an area I'm just getting to know. However, the Challenge is the Challenge, and for my first trip I want to keep things simple. However, I have to say the idea of returning with my tent and exploring in that area appeals. Thanks too for the link.

Chris