Go for a walk and ask your children to tell you a story, and help them start one if they struggle. Sing a song or play one on your phone to get it going. Bring a bag or basket with some “adventure tools” and snacks. Let your little ones pack it before you leave the house and watch them get excited as they think about the adventure that lies ahead. Bring crayons and wax paper to do rubbings of leaves. Make up small scavenger hunts looking for a green leaf or a gray rock. Nothing needs to be complicated, simple things with large imagination breed magic.
There are multiple sources online with different ideas for nature based activities. But I personally feel that nothing beats letting your children lead with their ideas. Let them take the reins of imagination and follow their lead. Sticks and leaves become boats, and tree trunks make a perfect castle. These are things I never would have thought of myself, and watching kids conjure them is like watching flowers bloom.
For those who live in cities or urban areas, try bringing a little bit of nature inside. Not everyone has access to long trails and open spaces. Take a basket, go outside and collect leaves, rocks, acorns, small sticks, anything that catches your childrens’ eyes. Go home and make things out of the treasures you have collected. Tell stories about them. Are these rocks from Mars? Could these be the magical leaves that gnomes sew their clothes out of? Turn a plain stick into a wand with paint and ribbon. Hide acorns around the house and ask your little squirrels to find them.