Dvinsk Clan
A Daugavpils, Latvia based parkour clan. Composing of around 30 people, their flagship video "Le Parkour" (Often known as Russian Climbing) has found it's way through the internet. A sequel ("Le Parkour, Latvia Daugavpils 2005", known as Dvinsk Clan 2) was made, but wasn't as popular.
Dvinsk Clan is the greatest parkour clan ever.