Gil Klar and his wife came to a head in the summer of 2013 when he announced that he wanted to build a pool in the back-yard. His wife disagreed, preferring to keep the grass so their children could have sufficient room for activities. And Gil’s biggest D.I.Y project to date was born. With the help of friends, the dad and husband designed a hidden pool.

The lid of the pool moves back and forth, hiding the pool when no-one is using it and giving the kids loads of room to play. Credit: YouTube/ Gil Klar