ITV3 Davina McCall: Life at the Extreme Catch up on the ITV Hub In this four-part documentary series, Davina McCall travels to some of the hottest, coldest, deepest and wettest places on earth to discover how some of the most extraordinary animals on the planet survive in its most hostile environments. 4 episodes available to watch Share this programme: Share on Facebook Share on Twitter Share on Google+ Episodes 4. Costa Rica - Wet Sat Saturday 16 Feb 3am Davina McCall travels to one of the wettest places on earth - Costa Rica. 3. Svalbard - Cold Sat Saturday 9 Feb 3.05am Davina travels to the Svalbard islands in the Arctic Circle - home of the polar bear. 2. Azores - Deep Sat Saturday 2 Feb 3.05am Davina McCall investigates how whales cope with the pressures of deep diving. 1. Namibia - Hot Sat Saturday 26 Jan 3am In Namibia, Davina learns how to survive the heat.