Letterboxing at Pioneer Park

How do I become a Letterbox Hunter?

1. Pick up a Clue Book starting June 3 from the Mercer Island Community & Event Center (8236 SE 24th St.). Read your Clue Book to become familiar with Pioneer Park and the SE quadrant you will be visiting.
2. Create a letterboxing kit. It’s simple! You just need your Clue Book, a favorite stamp and walking shoes!
3. Letterboxing is in Pioneer Park SE – Take your Clue Book with you to Pioneer Park to begin searching for letterboxes. Once you come to a box, open it and stamp the notepad that is in the letterbox with your stamp. Use the stamp that is in the letterbox to stamp your Clue Book. You can also write a note saying you were there with the pencil that is in the letterbox on the notepad. Once you have stamped your Clue Book move onto to find the next letterbox.
4. Take care of the letterboxes! It is REALLY important that you leave the letterboxes exactly how you found them – after all, you want the next hunter to have as much fun trying to find the letterbox as you did! If you find a problem with a letterbox, please email restoration@mercerisland.gov. 
5. Turn in your Clue Book by October 31 to be recognized for your accomplishment. We are keeping track of everyone that completes their Letterbox booklets because the Natural Resources team will host a celebration at the end of the season for all successful participants. Natural Resource staff will be reaching out with more information to all those who have turned in their booklets when that date gets closer.
6. You can turn in your completed Clue Books to the Mercer Island Community & Event Center or mail to: Recreation Department 2040 84th Ave SE, Mercer Island, WA 98040.
7. Have fun and see how many letterboxes you can find!

Questions? Email restoration@mercerisland.gov 

Celebrate National Trails Day with us on June 3^rd from 10am - 1pm!

Celebrate the trails of Pioneer Park and start your letterboxing adventure! Pick up your clue book, make a stamp and start hunting.

Please join parks staff for a work party in Pioneer Park on June 3rd for National Trails Day. Spring is growing season and shrubs need to be trimmed back to keep trail access open. We’ll be working with loppers and pruners to trim vegetation in the SE quadrant of Pioneer Park. Please wear closed toed shoes and be ready to work at 10:00 – 1:00. Gloves and tools will be provided.