Tuna boat is sailing Ladoga lake: “in-flight refueling“ of the GPS navigator

This video was shot during the cruise to Ladoga lake’s skerries on the sailing yacht: Camera man is in the motor boat (so called “Kazanka“). Batteries in the captan’s pocket GPS navigator powered off and the camera man gives him the spare ones from his camera. The yacht was hand-made on the basis of Soviet oceanic motor-sailing tuna boat in 1973 and still is in the good working condition!