Quadski

A quadski is basically a special vehicle that can go both on land and in water. It looks kind of like a quad bike, which is a vehicle with four wheels that people use to ride off-road. But with a quadski, it has special features that allow it to transition from land to water and back again.

When it's on land, the quadski works like a regular quad bike. You can sit on it and drive it around on rough terrain like dirt, sand, or rocky paths. You control it using handlebars (just like a bicycle) and a set of throttle and brake controls.

But when you reach a body of water - like a lake or river - that's where things get interesting. The quadski is designed to be able to enter water and float, like a boat. When this happens, the rider can still operate the vehicle and control it just like they were on land. However, instead of wheels, the quadski now uses in-built water jets to propel itself through the water.

The transformation from land to water mode is made possible by a set of hinges and hydraulic cylinders that make the wheels retract and flip up. These features change the quadski's appearance - forming a watercraft with high-grip tires that function like paddles. When in the water, the vast surface area of the wheels of the quadski provide the necessary buoyancy, and the engine rotates a propeller that powers the jets, resulting in a smooth, speedy glide across the water.

Overall, the quadski is an exciting and versatile transportation device that combines the best of both worlds, allowing for a fun ride both on land and water.