The brown bear is the largest predator of Kunashir Island. When meeting a bear, do not turn your back on it. You need to slowly move back, not look into his eyes. When driving on tall grass, make a noise (use whistles) — this will warn the bear about your approach. As a last resort, use a means of repelling the bear (flare, pepper spray) or climb a tree and wait until the bear loses interest in you and leaves.
If you see cubs, leave immediately, meeting a bear is always dangerous!