Hi Vadim
I´m from Kuopio, (70km from Tahko) and we have some nice spots here. We have at least 20 winter kiters here, and I think someone of them knows something about Tahko spots too..
Contact me, so I can tell you more. I speak also po ruskii =)
Pavel
info@wainmankites.fi
www.wainmankites.fi