Simon hides a coconut in a box
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Simon’s hiding process is not shown; instead, it starts with Mark arriving to start the search. We soon see why: Simon has hidden not only the coconut, but the square. Mark runs around looking for the square for an hour before giving up. In the studio, it is revealed that Simon disassembled the square and drove it to the nearby beach, where he reassembled the square in the water and threw the coconut into it. Simon wins the task.
(Written by Jenny R and proofread by Karl Craven)