
There is a Cani-X meeting in Bracknell. They a have their own website. The sport has been going on here is the UK for a few years. Originally it was horses pulling people on skis, called skijor, then dogs and people on skis, but as we don't have snaow we have a cross country run with the dog.
The dogs have a chest harness to wear which is attached to the runner by a long cord, (you can buy a special line or some have said use a bungee elastic). The dog is NEVEr attached to the runner by his/her collar.
http://www.cookhosting.co.uk/mysharedaccounts/dogsports/cc_index.htm They have a 2.5k run for beginners at Bracknell which you can have a go at, you can walk it as well. It is for any age of person. Extreme Cani-x is when a runner has two or more dogs with them.