Nature Walk for Kids of All Ages. Join us for a walk along the Greenbelt to see what we can find for plants, animals, and of course birds, this fall. BINGO cards for kids, with prizes. Meet in the parking lot at Optimist Park, next to the river, Saturday, October 5 at 9:00 a.m. This is a leisurely nature walk, but dress for the weather and don't forget your binos!