Situated as far east as one can travel in the Far East, Russia’s Kamchatka Peninsula is a vast area of remote wilderness prime for adventure. Despite its size, there are less than 200 miles of paved roads here, and the best way of getting around is often by helicopter. Known as 'the land of fire and ice', Kamchatka contains the highest concentration of active volcanoes in the world, as well as freezing winters that are braved by nomadic reindeer herders. The volcanoes have been incorporated into an extensive UNESCO World Heritage Site that is home to a wide variety of wildlife, including brown bears, sea otters and sea eagles. The region’s extensive network of rivers and proximity to the Sea of Okhotsk and Pacific Ocean allows it to play host to the largest variety of salmonid species on earth, including the sockeye salmon. The seas surrounding the Commander Islands are perfect for intrepid adventurers wishing to catch a glimpse of marine wildlife, with orcas, humpback whales and teeming seabird colonies often visible.