Nine celebrities including singer Olly Murs and presenter Dermot O'Leary, who are set to embark on a charity trek across a desert in Kenya, have been warned to look out for deadly snakes.
The celebrities, who are set to trek across the Kaisut Desert in northern Kenya in aid of Comic Relief, were given a talk on the deadly creatures they might encounter in the region, such as the Black Mamba snake and the fast-moving Camel spider.
The Kaisut is believed to be one of the world's most inhospitable deserts, and travellers to the region are warned to ensure that they have an appropriate level of travel insurance, including adequate medical cover and emergency repatriation.
Other celebrities participating in the trek are singer Craig David, presenter Lorraine Kelly, Strictly Come Dancing champion Kara Tointon, impressionist Ronni Ancona, actress and presenter Nadia Sawalha and radio presenters Scott Mills and Peter White, who is visually impaired.
In a three-hour acclimatisation run, the trekkers tested out their boots and rucksacks, and practised helping White pick his way through the rocky terrain.
The celebrities also visited a sight clinic on the eve of the trial trek, where they met people from the local area who receive treatment for cataracts and trachomas.
They previously arrived in the barren region on an eventful flight from Nairobi, which saw worried Murs comforting Kelly as the small aircraft pitched left and right before it touched down on a grass landing strip.
The celebrities will cover 100 kilometres across the barren desert in five days while facing temperatures of up to 40C.
The BT Red Nose Desert Trek will raise money for Comic Relief projects which benefit deprived people across Africa and in the UK.
© Press Association 2011