Sports partner(s) (Moscow)

Hello everyone!
Is anyone up for training? I sometimes find it hard to motivate myself to train on my own (especially here and now in Moscow with this weather :)), so that would be cool if someone wanted to join the efforts. It can be martial arts, yoga or just general exercises (or volleyball, archery, horse-riding, whatever comes to mind). I found such a person to train with back in Beijing and it really worked very well.
That can be nice both to go somewhere or just train in a room (I would suggest a park, but it's not the best timing).