Two Belgian entrepreneurs, David Ghysels and Stefan Kerkhofs, have come up with a way to host a dinner party while suspending diners 50m above the ground.

The Dinner in the Sky 'restaurant' has already served diners in Paris, Brussels, Lisbon and London.

"It's a very creative concept," says David Ghysels. "Creative about the table itself, creative about the food you give to your guests, and also about what you are doing on the table."

Last year, Dinner in the Sky was included in the Forbes.com list of the ten most unusual restaurants in the world, alongside Dans Le Noir in London, Paris and Moscow, where diners eat in the dark, and Moto in Chicago where food is cooked with a laser and even the menus are edible.

The Dinner in the Sky table, which weighs a whopping five tons, seats 22 people. Each seat rotates 180 degrees and diners are strapped in with four-point seat belts, similar to those worn by race car drivers.

The dining table can be hoisted anywhere, provided there is enough space for the crane to hold your party aloft.

Yet the entrepreneurial duo's plans to host dinners overlooking the Grand Canyon and Niagara Falls have been stalled by American insurance requirements.

"The location is very important," David says. "It's not a question of fashion. With Dinner in the Sky, what's great is that the sky's the limit."

There is, however, one catch: no upstairs bathroom.

For more information, visit www.dinnerinthesky.com