ITV 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 Latest 4. Costa Rica - Wet Tue Tuesday 25 Jul 10.40pm Davina McCall travels to one of the wettest places on earth - Costa Rica. 3. Svalbard - Cold Tue Tuesday 18 Jul 10.40pm Davina travels to the Svalbard islands in the Arctic Circle - home of the polar bear. 2. Azores - Deep Tue Tuesday 11 Jul 10.40pm Davina McCall investigates how whales cope with the pressures of deep diving. 1. Namibia - Hot Tue Tuesday 4 Jul 10.40pm In Namibia, Davina learns how to survive the heat.