Head to the treehouse area for this one.

Solving it will require you to do something up in the trees as well as down on the ground below.

When you look around the treehouse area, do you see any objects that seem like they would make good paths in an environmental puzzle?

The walkways will form the path.

Can you spot which walkway has a path ending (rounded tip) on the underside?

See if you can position that walkway close to another walkway to create a path.

Once you get them in position, you will need to solve it from the ground.

From the ground, when you look up at the walkways, do you see something that could be used as the start circle?

Position the two orange walkways so that they overlap with each other.  Then head down to the ground below.

From the ground, get yourself in a position so that when you look upward, the big cluster of orange leaves forms the start circle.

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Try looking upwards from the ground.

Look at the underside of the walkways to get a feel for what the path will be.