Here is what the Seattle Audubon Society says, "Join us for a Saturday night Bats & Beavers Walk in the Magnuson wetlands, led by Beavers Northwest staff and Bats NW volunteers, with help from Seattle Audubon Master Birders and Children’s Garden volunteers! Learn and see about how these fascinating animals are adapted to their nocturnal life, with fun for the whole family. The start location for this walk is the sidewalk trail next to the Magnuson Boat Launch, which is just off Lake Shore Drive. Parking available along the edges of E-1 or E-2 parking lots. No pre-registration necessary."