Apple is once again hosting an Apple Watch Activity Challenge for Earth Day. As it has done for the past two years, Apple is celebrating Earth Day by encouraging Apple Watch users to get out and celebrate the planet.

Here’s how Apple pitches the Earth Day Apple Watch Activity Challenge this year:

Apple Watch Activity Challenges returned after a brief hiatus in February when Apple held a Heart Month and Valentine’s Day themed challenge for users. In March, Apple held an Activity Challenge for International Women’s Day. This year’s Earth Day Activity Challenge marks the third year in a row in which Apple has encouraged users to celebrate the planet.

Activity Challenges allow Apple Watch users to collect virtual trophies available through the Achievements tab of the Activity app on iOS. There are also special stickers that can be used with Messages and FaceTime.

The stickers that users can unlock through this year’s Earth Day Apple Watch Activity Challenge can be seen above.

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  • Next Apple Watch Activity Challenge kicking off on International Women’s Day
  • Next Apple Watch Activity Challenge set for Veterans Day on November 11th