Mercer Slough Environmental Education Center Private Events & GroupsLooking for private events and activities to do with a large group while connecting with nature? We have something for everyone. Wild B’earthday Parties Celebrate your birthday in the wild! Explore the wetlands, play ecology games, and then celebrate your party amidst the tree tops. Guided Nature Walks Explore Mercer Slough and learn about local ecosystems through include nature journaling, edible plant identification, birding, and more!