As part of our Earth Week Celebration, join us for a walk at dusk to listen and look for signs of spring - like owls calling, frogs singing, or salamanders migrating. Dusk is one of the best times to look for wildlife at GRNA! Pre-registration required. There is limited space on the walk. Must pre-register. Get more information at grassriver.org. 6500 Alden Hwy, Bellaire MI 49615.