Calm purple evening light, of blue hour, deep blue Lake Mashu in a crater, Akan Mashu National Park, Hokkaido, Japan, Asia

travel destinations travel horizontal hokkaido japan asia outdoors sunset dusk no people clear sky sky copy space aerial view lake mashu lake water mountain island shadow crater akan mashu national park national park travel destination tourist destination tourist destinations sundown evening twilight shadows outdoor outside nobody no one no person mountains lakes pond ponds natural islands colour