Boo on the Bluff Halloween, NatureBluff Lake Nature Center3400 Havana Way Denver, CO 80238 720-708-4147www.blufflake.orgDate:Oct 26, 2019 10am - 1pmCost: $3 per person, $15 per familyTrick or treat your way around Bluff Lake while visiting stations from partners that will host a variety of activities, crafts, and games.