Be sure to watch episode two of the BBC's latest documentary series Nature's Epic Journeys.

A hundred thousand caribou face starving bears and wolves, deadly frozen rivers and rugged mountains as they undertake the world's longest land migration - 5,000 kilometres through the frozen Arctic wilderness of Canada and Alaska.

Liz Bonnin leads a team of scientists and film-makers using cutting edge technology to follow the herd, providing insights into the individual lives of the animals. The caribou must reach their calving grounds before they give birth - failure would spell disaster.

Further information on the new series of Nature's Epic Journeys and stories from the field can be found at: http://www.bbc.co.uk/programmes/b07c4th3

Sitting in the northwest corner of Canada, adjacent to the US state of Alaska, Yukon is one of North America's most impressive wilderness destinations. If you have an adventurer's spirit, a love of nature and a passion for exploration, Yukon should be at the top of your holiday destination list. It is not a choice for the feint-hearted, but it is a voyage of discovery with very rich rewards.

If you're looking for a wildlife holiday, where better than one of the wildest places in the world to see caribou, moose, bears, sheep, birds and hundreds of other northern species? Close to 80 percent of the Yukon remains pristine wilderness with just over 10 per cent of the territory fully protected - it has three national parks, six territorial parks and four Canadian Heritage Rivers. Roughly the size of France at 186,661 square miles, the Yukon is home to more than 165,000 caribou, 70,000 moose, 22,000 mountain sheep, 7,000 grizzly bears, 10,000 black bears and 250 species of birds… and only 36,000 humans! In the Yukon, people are outnumbered by caribou by more than 4 to 1! 

Visitors are able to download a comprehensive guide on wildlife viewing at: http://www.env.gov.yk.ca/animals-habitat/wildlifeviewing.php

Tourism Yukon also have additional information on wildlife viewing at: http://travelyukon.com

Ivvavik National Park

For something a little different, Parks Canada offer a guided Northern iconic experience at the Imniarvik fly-in base camp. Climb aboard a Twin Otter bush plane for your Arctic adventure of a lifetime. Fly over the Mackenzie Delta and into the heart of the British Mountains. This spectacular flight will leave you speechless and you will soon be enjoying the peaceful feeling of Artic time at base camp. Hear the stories and experience the culture of your Inuvialuit hosts where connections to the land go back generations. Parks Canada staff will show you the way to Inspiration Point, Halfway to Heaven, Wolf Tors, Sheep Slot or Gordon's Food Cache. After the hikes you will have time to relax on the deck or head down to the river to try your hand at fishing while the camp cook prepares your northern comfort food. Explore the breathtaking mountain wilderness of Ivvavik National Park as Parks Canada staff lead day hikes of varying lengths and difficulty with plenty of time to kick back and relax under the midnight sun at the comfortable Arctic base camp.

Windows on the Wild offer an Arctic Adventure to Ivvavik National Park (select departures in June & July 2017) with prices from £3655 per person based on two sharing, including return flights from London to Whitehorse, two nights room only in Whitehorse, two nights room only in Inuvik, return flights to Inuvik and onwards to Ivvavik National Park, four nights camping (tent and camping mattress provided), all meals and snacks whilst camping, guided hikes in the National Park and services of an Inuvialuit cultural host. For more information contact tel: 020 8742 1556 or visit: www.windowsonthewild.com