beautiful
blue
blue sky
by the river
calm
chitose river
chitoseshi
clear sky
copy space
forest
green
headwaters
hokkaido
holiday
japan
lake shikotsu
lakeside
landscape
midsummer
mooring facilities
mother nature
nature
outdoor
outside
people
person
pier
play in the water
pond
river
riverbank
rivers
sight
sky
source
summer
summer vacation
sunny
the origin of
trees
vacation
vertical position
views
water source
water surface
waterside