Rainy days are great for studying sidewalk hydrology. #rain #hydrology #river #lake #worldinminiatur
Rainy days are great for studying sidewalk hydrology. #rain #hydrology #river #lake #worldinminiature https://www.instagram.com/p/Btn1EDGB62U/?utm_source=ig_tumblr_share&igshid=1ja8zps49msqo -- source link
#hydrology#worldinminiature