Hill? Check. Huge inflatable ball? Check.
The Rolerball is huge inflatable ball which is about three metres tall and can fit up to two people inside, strung up in harnesses like meat in a butcher's shop. Just add the hill.
It comes with a pump to take care of the inflation side of things and is made of a tough material, but there's a puncture repair kit just in case something does manage to poke a hole in it.
You might have seen one before – a Rolerball is the main ingredient for the adrenalin sport known both as Zorbing or Sphereing, long the preserve of thrill-seeking gap year students in New Zealand. And yes, it is just rolling down a hill in a big ball, but boy is it fun.
And if that's not enough for you, take it up a notch with a ride in the 'washing machine' – toss a few buckets of water inside, unstrap yourself and set to spin. Probably best to leave your dirty undies at home, though.
On sale: Now