Sticker Passport

Download and print a sticker passport to keep all of your park stickers together in one spot!

It’s easy to play along! Visit some (or all) of the parks, submit your evidence in the GooseChase app and start collecting stickers!

To print, click on booklet and select double-sided.

View finished passport.

Welcome to Nature Sleuths!

Join the hunt for hidden treasure! Not the lost coins of yesteryear but something far older. Grab your gear and set out solo or with other adventurous explorers. This all ages, family-friendly treasure hunt will take you through old growth forests, hidden urban gems, beaver ponds, marine beaches and much more!

Using the GooseChase app on your tablet or smartphone, explore and sleuth your way through one or many missions at more than 30 beautiful parks and natural areas located in Thurston County.

Play along with the Goose Chase app and complete each park’s mission to receive a park-specific Nature Sleuth sticker and be entered into a drawing for cool prizes! The more missions you complete, the higher your chances are to win!

Join us year round with prize drawings held twice a year! Stickers will be mailed directly to participants at the end of each month. Remember to add your current mailing address to your profile to receive stickers!

Take the bus!

Bus route information for each park can be found on the park’s mission page. Just look for the transit icon for more information!


GooseChase app directions:

  1. Download the GooseChase iOSor Android app.
  2. Choose to play as a guest or register for a personal account with a username and password of your choice
  3. Search for and select the Nature Sleuths 2024 game, or search by game code LPX99X.

Don’t have a device for apps?
We’re here to help! Contact us at


Explore more!
Borrow an adventure pack.

The Timberland Regional Library offers a variety of adventure backpacks available for check out. Backpack items vary and some even include a Discover Pass! Learn More


New Stream Team app makes search for wildlife into a treasure hunt, The Olympian, Apr. 16, 2021

Read full article

Participating Parks:

Billy Frank Jr. Nisqually National Wildlife Refuge Estuary Boardwalk

Billy Frank Jr. Nisqually National Wildlife Refuge Twin Barns

Black Lake Meadows Reserve

Brewery Park at Tumwater Falls

Burfoot County Park

Darlin Creek Preserve

Decatur Woods

East Bay Public Plaza

Frye Cove

Hawks Prairie Ponds

Kenneydell Park

LBA Park

McLane Creek Nature Trail: Forest Walk

McLane Creek Nature Trail: Wetland Walk

Millersylvania State Park

Mima Mounds Natural Area Preserve

Mission  Creek Nature Park

Nisqually Reach Nature Center -Part 1-Tide Prediction

Pioneer Park

Randall Preserve

Squaxin Park (Priest Point Park): Ellis Cove Forest Trail

Squaxin Park (Priest Point Park): Flora Vista Beach Trail

The Evergreen State College Beach

Tolmie State Park

Tumwater Historical Park

Watershed Park

William Ives Trail

Wonderwood Park

Woodard Bay Conservation Area

Woodland Creek Community Park

Yauger Park

When visiting parks, please follow all Washington State COVID 19 guidelines.