Boy helps his dad build rollercoaster in back garden
- Published

This rollercoaster is in 10-year-old Lyle Pemble's backyard. He helped his dad design and build it.

The coaster is powered only by the force of gravity and is made of wood.

Lyle wants to work as a rollercoaster engineer when he grows up. The ride is nearly 200 feet long and took about six weeks to build.

Lyle's dad, Will, has made sure the ride is safe, it's called "The Caution Zone" because of all the safety features they've used. Definitely not one to try at home.