asia
bleached bone
chubu
clear water
comfort
daytime
eco
ecology
ecology image
environment
green
groundwater
hokushinetsu region
japan
koshin region
koshinetsu region
middle
moss
nagano
nagano prefecture
natural
orient
refreshing
river
rock
sensation of coolness
september
shinetsu region
shirahone onsen
splash
spray
spring
spring water
summer
summer image
water
water flow
water splash
waterfall
waterfall of dragon