Yes. Renn = ski. Ritt = bikes and horses. Løp = cars and running (and skates). In the example it isn't the går that turns into skiing, it's går langrenn
Quick edit to insert a comment: there's an event called Birkebeinerrennet. It's a cross-country skiing competition. They also have it for running and cross-country bikers, Birkebeinerløpet and Birkebeinerrittet. (Birkebeinerne was a viking tribe, rescuing a 5 year old royal by skiing over the mountain)
Your link goes to å renne, which means to flow. As water flows. When skiing, it is also referred to as å renne på ski, or in a competition et renn, which is the same as a race on skis. As a verb you will rarely say å renne and actually be talking about skiing, mostly you will say å gå på ski and secondary å renne på ski (also a choice of dialect which to prefer). Because renne means flow, it signals more active movement than gå. Langrenn is the Scandinavian cross-country skiing variety, long thin skis.
Et renn = a race on skis
Å renne = to flow
Å renne på ski = to ski = å gå på ski
(I can't reply even further down in the thread so I had to go back up here)