Experiencing Siberia on the ground
If you're in Russia and looking for something to do, a bit off the beaten track, I would recomment volunteering with the Great Baikal Trail in Irkutsk. The GBT, which is devoted to building a system of trails around Lake Baikal to encourage ecotourism. We're looking for more volunteers to come help with our summer projects. There are 23 such projects, located around Lake Baikal, and they run from June through September.
Each project has 15 to 20 volunteers (typically half Russian and half international), a Russian crew leader, and a Russian English / Russian translator. Volunteers have come from all over (this year we have Americans, Danes, Canadians, Germans,...).
We work for the first part of the day clearning trails, then hang out, hike etc. (don't worry, it's no gulag). If you're looking to experience Siberia, meet a lot of great people, work for a good cause, and see one of the world's natural wonders--Lake Baikal--this is a great way to do so.
Give me a shout if you're interested at gbt.volunteers[at]gmail