text: If you've always dreamed of seeing penguins in Antarctica or tracking the Siberian tiger in Russia - but gorilla trekking in Rwanda and spotting grizzlies in Alaska also feature on your to do list, this could be the safari for you. But before you don your khakis, you'll need a whopping £176,000 going spare to take part. The grand adventure promises to deliver up and close and personal moments with some of the world's most elusive and enchanting wildlife. Scroll down for video . The adventure promises to deliver up and close and personal moments with some of the world's most elusive and enchanting wildlife . To mark its 10th anniversary, Natural World Safaris has launched a new series of ‘Ultimate Safari’ adventures. Divided into four areas: Primates, Bears, Big Cats and Marine Life, the safari can be taken separately, but also as an epic world tour over 203 days, taking in 21 destinations. On each ‘Ultimate Safari’, guests will be guided across the globe on a carefully planned itinerary, taking them through Africa, Asia and the Indian Subcontinent to the Polar Regions and Latin America for rare wildlife encounters. Each safari can be split into separate legs, or completed in one journey. They will be accompanied by expert guides, optimising the visitors encounters with wildlife, ensuring they are in the right place at the right time. The Ultimate Bear Safari tracks polar bears, grizzly bears and spirit bears in Arctic Canada, the Arctic Circle, Alaska and British Columbia . The rarest animal that guests can hope to see is the critically endangered Siberian Tiger in Russia. With a population currently stabilised at under 400, sightings in the wild are extremely rare as Siberian tigers have the largest home range of any tiger subspecies. Accommodation ranges from pure luxury such as Shangri- La Rasa Ria, a large resort with its own orang-utan sanctuary, to basic cabins in Russia’s Durminskoye Forest Reserve, the best place to experience the habitat of the elusive Siberian Tiger. They can spend nights in eco lodges like the domes at Patagonia Eco Camp in Chile, and aboard ships such as the MS Malmo, a maritime vessel with heritage listing and the Jaguar House Boat moored on the north side of Taima Island, one of the best places in the world to see jaguars in the wild. BEARS . Destinations visited: Arctic Canada, Churchill (Canada), Svalbard, Alaska, Bella Coola (Canada), Great Bear Rainforest (Canada) Duration: 45 days . Cost: from £45,000 including international and internal flights, transfers and all meals . See: polar bears, grizzly bears and spirit (Kermode) bears . BIG CATS . Destinations visited: Brazil, Chile, South Africa, Tanzania, Kenya, Sri Lanka, India . Duration: 62 days . Cost: from £45,000 including all international and internal flights, transfers and all meals. See: jaguars, pumas, leopards, cheetahs, snow leopards, tigers, Asiatic leopards, Asiatic lions, Bengal tigers and Siberian tigers. PRIMATES . Destinations visited: Tanzania, Rwanda, Republic of Congo, Madagascar, Borneo, Sumatra . Duration: 39 days . Cost: from £35,000 including international and internal flights, transfers and all meals. See: chimpanzees, mountain gorillas, lowland gorillas, lemurs, Bornean orangutans and Sumatran orangutans . MARINE ANIMALS . Destinations visited: Antarctica, Galapagos Islands, Iceland, Sri Lanka, Arctic Canada, South Africa, Svalbard . Duration: 57 days . Cost: from £51,500 including international and internal flights, transfers and all meals. See: humpback whales, sea lions, marine iguanas, Galapagos penguins, killer whales, blue whales, narwhal, beluga whales, polar bears, dolphins, sharks, sardine shoals, sea turtles and more. TOTAL: . Price £176,000 . Destinations 21 . Total Days- 203 . www.naturalworldsafaris.com . For those with a budget weighty enough to take on the whole 201 day extravaganza, there would be some overlap in terms of destinations, for example- tours to Svalbard appear on both the Marine safari, for narwhals, and the bear safari, for polar bears. So the option of dividing it up may be appealing. The Big Cat section takes intrepid nature fans to ten different locations, starting in Latin America to track pumas and jaguars, before heading off to Africa for cheetahs, lions and leopards. Guests will then visit Asia for Asian leopards, Asiatic lions, snow leopards and tigers, before finishing in Russia looking for the biggest cat of them all, the Siberian tiger. The Asiatic lion (left) and the Bengal tiger (right) are just two of the big cats safari participants can expect to see on their travels . The countries that will be visited are Brazil, Chile, South Africa, Tanzania, Kenya, Sri Lanka, India and Russia. As a separate trip, the 62 day Ultimate Big Cat Safari starts from £45,000 per person including international and internal flights, transfers and all meals. Primate enthusiasts can travel from Africa to Asia in search of mountain gorillas in Rwanda and lemurs in Madagascar to orang-utans in Borneo. The 39 day trip takes in Tanzania, Rwanda, Republic of Congo, Madagascar, Borneo and Sumatra . The Ultimate Bear Safari tracks polar bears, grizzly bears and spirit bears in Arctic Canada, the Arctic Circle, Alaska and British Columbia. The-45 day trip starts from £45,000 per person including international and internal flights, transfers and all meals. Meanwhile, marine animal fans can meet penguins and whales in Antarctica, sea lions and turtles in Galapagos, venture to Iceland to see killer whales and Arctic Canada for narwhals, dolphins and sharks in South Africa, and the mighty blue whales off Sri Lanka. The 57 day Ultimate Marine Safari starts from £51,500 per person including international and internal flights, transfers and all meals. A bald eagle hunts for fish in Alaska. With a wing span of up to 7.5 feet, the species is found only in North America . Accommodation ranges from pure luxury at the Shangri-La Rasa Ria in Malaysia to basic tents at the Arctic Safari Camp in Arctic Canada . A grizzly bear with his catch. The 45 day Ultimate Bear safari starts from £45,000 per person . Guests will be accompanied by guides, optimising the visitors encounters with wildlife, ensuring they are in the right place at the right time . Divided into four areas: Primates, Bears, Big Cats and Marine Life, the safari can be done as an epic world tour over 203 days . From scowling jaguars to splashing polar bears, the ultimate safari is every wildlife lover's dream holiday, yours for £176,000 . Guests can camping on the edge of the ice floe in Arctic Canada heading out each day with your local Inuit guides to track the polar bears . A Verreaux's Sifaka carrying her baby, in Berenty, Madagascar, where there are over a hundred species of lemur - all endemic to the island . Each safari can be split into separate legs, or completed in one journey. Pictured, a chimpanzee takes time to reflect . Stay in eco lodges in Chile, aboard ships such as the MS Malmo and the luxury tents at Greystoke Mahale, in Tanzania . The Anjajavy Lodge in Madagascar is one of the most luxurious properties found on the island and can only be reached via private airstrip . Fancy a dip with a blue whale? You can swim with them in Sri Lanka as well as seeing dolphins, turtles, pilot whales and sperm whales .
target: See cheetahs, lions and leopards in Africa, Siberian tigers in Russia, Polar bears in Svalbard and grizzlies in Alaska .
  Madagascar, Borneo, Rwanda, Sri Lanka and Brazil feature on the itinerary - which is a dream for wildlife lovers .
  During the tour, guests stay in accommodation including tented camps, mountain lodges and beachfront hotels .