INSULATED MITTENS / GLOVES
If you plan to take a lot of pictures (for example, going on a photo tour), the best option would be hybrid gloves with short fingers and a removable "cover" that makes mittens out of gloves.
BALAKLAVA OR INSULATED PIPE SCARF
Since you will probably spend a lot of time outdoors, and strong winds often blow on Lake Baikal, it is advisable to take care of your face protection. Alternatively, you can wrap yourself in a regular scarf, but this is inconvenient.