2021 Monster Mash Drive-Thru Spooktacular

Sunday, October 31, 2021 - 1:00pm to 4:00pm

Sunday, October 31 from 1-4pm
Multiple sites throughout Lake Oswego

Join the Lake Oswego Parks & Recreation for an afternoon of frightful fun! Dress up in a spooktacular Halloween costume, decorate your vehicle and enjoy this family friendly event. Drive through town to trick-or-treat locations and collect sweets, treats, toys and trinkets. This cobweb filled celebration includes a playlist of spooky tunes and a scavenger hunt too! The first 1000 participants will receive a trick-or-treat bag. Ages 0-12 welcome. 

Click HERE for a downloadable PDF map of spooky treat locations!


  • Westlake Fire Station – 4900 Melrose Street (please enter from Melrose St.)
  • Lake Oswego Junior High School – 2500 Country Club Road
  • Lake Oswego City Hall – 380 A Avenue
  • Foothills Park – 199 Foothills Road
  • Lakeridge High School – 1235 Overlook Drive
  • Westridge Elementary School - 3400 Royce Way
  • Lakeridge Middle School sponsored by Kiddie Academy of Tigard – 4700 Jean Road
  • The Little Gym Lake Oswego – 5820 Jean Road
  • West Waluga Park sponsored by Kumon of Lake Grove – 15775 Waluga Drive
Special thank you to our spooky sponsors Kumon Math & Reading Center of Lake Grove, The Little Gym of Lake Oswego & Kiddie Academy of Tigard!