Adults Only. Hike with a Teatown educator on the newly designed Twin Lakes Trail. The 2.5 mile hike through varied habitats, ambles by Vernay and Shadow Lakes, traverses wetlands, and climbs through forested uplands. Along the way we will stop to look for migrating hawks, and discuss the ecological stressors on the local landscape. Bring water and a snack and wear hiking boots. Rain cancels. Members Free, Non-members $7. Programs require pre-registration. To register, call 914-762-2912 x 110.