Another feature of mountains in Korea, the helicopter landing areas, to rescue the old folks who's hearts have given up mid hike. I see a lot of helicopters and could hear them most of the day, but those were military Chinook double rotor death traps.
Camera Details: SONY, ILCE-7M2 Settings: 1/200 at f/8, ISO 100, 28 mm Date: 03 April 2019 Time: 10:02:07