Celebrate state parks' 100th anniversary with GeoTour

Washington State Parks is celebrating its 100th anniversary with a Centennial GeoTour.

The tour allows visitors to uncover 100 geocaches in 100 state parks across Washington.

Geocaching is a family-oriented recreational activity where participants search for hidden containers using a smartphone or GPS.

The centennial geocaches reveal historical facts, hidden vantage points and scenic locations in the state parks.

The first 180 participants to find 50 caches will earn a silver GeoCoin, and the first 30 participants to find 100 caches will earn a gold GeoCoin.

A printable map and passport, along with rules and information, are available at parks.wa.gov/geocaching.