First Monday is on Highway 15 on the south side of town. They required time to sort through their sensations and for us to comprehend this. The water comes mostly from rain and snow that eventually melts and fills the tributaries. Stroll from town to town, each set out in scale, exactly put. You can get an eyeful of plumes and an earful of bird song at the NYC Audobon Society on 71 West 23rd Street.