It is to the right of the school. (There is a big space to cross by clicking "go right".)
Big Nate Island (left to right) : Blimp landing / Business District / School / Playground / Lighthouse / Seal Rocks (last by jet ski only)
On Big Nate island the three girls stand on the playground to the right of the school .
near the playground
Under the playground
at the playground on big Nate island
at the playground
You win it at the hangout place in the playground when you play with Nate.
Just keep going to your right.
Under the monkey bars on the playground
under the girls at the playground.
in the middle of the girls on the playground!
Somewhere on playground
A person can get the bell clappers in Big Nate Island by talking to the man who runs the comic book store. He will provide you with directions on finding the chest. The chest with the bell clappers is located in the playground on Big Nate Island.