The end of winter is in sight! This weekend, Tinkergarten is offering free classes and encouraging kids to head outdoors to experience the extra sunlight.

As part of the “Spring Forward” campaign, the movement is trying to improve families’ lifestyles by offering more than 1,600 complimentary classes across the nation from March 8-31. Classes are available for kids ages 6 months8 years old. Kids can join together to test their creativity and collaboration.

Tinkergarten also made a suggestion of three fun ways families can get outside together without one of their classes. In Not-a-Sheet, kids grab an old sheet and transform it into endless possibilities. It could be anything from a fort to a raging river — creativity decides.

To partake in Spreading Smiles, kids just need a washable marker and a good attitude. They can travel around the neighborhood adding happy faces to whatever rocks and other items they can find. Not only does this get kids outside, but it also spreads cheer to everyone. Faces for the Tree is a similar game in which kids use mud, leaves, acorns, and whatever else nature provides to design faces for trees.

Find the list of classes and more suggestions for outdoor fun on Tinkergarten’s website.