No matter where you are in the world, the equinox marks a moment of change as one season gives way to the next.

Celebrate the transition with a unique souvenir!

September 19–22, 2026, is your opportunity to earn the September Equinox souvenir. Celebrate the equinox by finding and logging any geocache, Event, or Adventure Lab® Location during the souvenir period. The September equinox is a shared moment experienced around the world, when day and night are once again nearly equal before the days continue to change.

As the seasons shift, humpback whales begin their long migration south. Their incredible journey reflects the changing rhythms of nature and the spirit of exploration that inspires geocachers to discover new places throughout the year.

The September Equinox souvenir is one chapter in this year’s seasonal whale collection. Together, the four solstice and equinox souvenirs follow the humpback whale’s migration across the globe, with each one representing a different stage of its remarkable journey.

Wherever this season takes you, we hope it brings new adventures, memorable discoveries, and plenty of geocaches along the way.

How will you celebrate the equinox?