Comedienne Ruby Wax, actor Richard E Grant, athlete Colin Jackson and former Emmerdale star Amy Nuttall have agreed to appear in ITV1's Celebrity Shark Bait.

The four celebrities will undertake a two-day scuba diving course in an area off the coast of South Africa called Shark Alley. After completing the course, the stars will be placed into a metal cage and lowered into the water.

Viewers can expect to see how the celebrities fare in a one-off special in September, to celebrate the 30th anniversary of Jaws.