I think you're on the right track by considering team-building activities like treasure hunts, scavenger hunts, or collaborative storytelling sessions as a way to double the fun for kids in your care. However, I would take it a step further by suggesting more hands-on and interactive experiences that focus on science and creativity.
At each station, why not incorporate experiments with art and crafts to create something truly unique? For example, you could have a 'Slime Studio' where kids can mix and match different concoctions of glue, water, and food coloring to create their own customized slime. Another station, called the 'Paint Lab,' could offer a wide range of materials like paint, markers, and colored pencils for kids to express themselves through vibrant artwork.
These stations would not only double the fun but also provide opportunities for kids to explore science and creativity at their own pace while working together and developing important social skills.