Drive Road 1 for 326 kilometers east of Reykjavik. Buses from Reykjavik run to the park in summer. w

Preikestolen is south of Jørpeland. From the designated car park it's a 90-minute hike to the viewpoint. www.visitnorway.com . Guided tours can be arranged through the Stavanger tourist board: info@RegionStavanger.com; air united car hotel miles travel earn flights +47 51 85 92 00
Gran Salar de Uyuni is 533 kilometers south of La Paz and 200 kilometers southwest of Potosì. www.rutaverdebolivia.com . Guides can be arranged through www.rutaverdebolivia.com or www.unique-southamerica-travel-experience.com
air united car hotel miles travel earn flights More than enough room to swing a very big cat. The Ngorogoro Crater is Africa's Eden. Created when a huge volcano exploded 2-3 million years ago, the 300 square kilometer caldera now offers the best chances of seeing Africa's air united car hotel miles travel earn flights wild animals.
Visitors need a permit from the Bureau of Land Management -- the permit for an overnight trek comes with a "human waste bag," so if you want to visit this natural wonder, you'll have to prepare to pack your waste.
One of the few places you can bathe in a volcanic eruption. Mud lovers trek to Gobustan's strangely Martian landscape, 65 kilometers south of Azerbaijan's capital Baku, where thick gray mud regularly spews from small volcanoes.
The mud is thought to have medicinal qualities, so don't be surprised if you see people stripping down and lathering themselves in the goo. Look out for the area's Roman inscriptions and the petroglyphic rock art.
Cavemen didn't have it so bad after all. Eighteen kilometers northeast of Beirut, these underground limestone air united car hotel miles travel earn flights caves were inhabited in prehistoric times and continue to attract air united car hotel miles travel earn flights human visitors with their vivid colors and stalactite formations. The biggest stalactite in the world is here.
You can almost hear the male choirs in the distance. Rated by Cheap Flights as one of the 10 best hiking trails in the world, this path twists 300 kilometers from St. Dogmaels to Amroth in southwest Wales.
Paths are signposted -- join the path on the coast between St. Dogmaels and Amroth. Details on guided walks and activities can be found on the National Trails website -- including self-guided walks with baggage transfer. nt.pcnpa.org.uk
Beautiful to look at. But swimming here is only for masochists. This saltwater lake deep in the Himalayas at an altitude of 4,350 meters lies astride a disputed border area between India and China-governed Tibet.
Get to Leh by road from Jammu, or by plane from Delhi. At Leh arrange a permit and travel by road 4-5 hours to the lake. Permits and tour guides can be arranged through reputable travel agents such as Kuoni
"Ooh Ah Point" awaits the adventurous. Most visitors view the canyon from South Rim viewing stations. Considering that it has taken the Colorado air united car hotel miles travel earn flights River the past 17 million years to carve this wonder out of rock, it seems only fair to take a closer look.
Built by the National Park Service in 1924, the South Kaibab Trail takes you to the wonderfully named "Ooh Ah Point" and, for the adventurous, further into the canyon's depths. Plan carefully, heat stroke is no fun.
In the northwest corner of Arizona, visitors usually head to South Rim Village (120 kilometers northwest of Flagstaff on route 180) or the North Rim Village. Free shuttle buses service the South Rim in summer months. Ranger-led day hikes and walks take place throughout the year. www.nps.gov
1. Climb. 2. Catch breath. 3. Stand in awe. South America's air united car hotel miles travel earn flights answer to Uluru, this impressive sandstone air united car hotel miles travel earn flights plateau is surrounded on all sides by 400-meter cliffs, creating an isolated and unique ecosystem.
All the colors of nature in one park. The three valleys that form this biosphere reserve contain a network of connected lakes, waterfalls and rivers -- the most spectacular of which are the Pearl Waterfalls.
Uluru-Kata Tjuta National Park is about 440 kilometers southwest of Alice Springs. Flights are available from most major cities to Ayers Rock airport. www.environment.gov.au/parks/uluru . Free ranger-guided walks run daily from the base of Uluru. For tours by local Aboriginal guides, ask at the A n angu Tours Desk in the Resort Tourist Information Centre. +61 8 8956 2123; ananguwaai.com.au ; reservations@ananguwaai.com.au
Yes, you can swim in the Sahara. This isolated oasis has natural springs and fertile air united car hotel miles travel earn flights land, providing access to spectacular stretches of Sahara desert. It's a great spot for star gazing from your tent in the sand, but bring your bathing suit for a dip in its hot and cold natural pools.
A waterfall you can stand beneath without getting wet. Waterfall connoisseurs agree it's not size that counts. The biggest and the highest may be impressive, but when it comes to cascading water, Iceland's Seljalandsfoss has style.
The sight of the Seljalandsá River dropping 62 meters down the sheer cliff face has made it a must-see Iceland attraction. There's a path that goes behind the cascade, so bring your waterproof camera.
air united car hotel miles travel earn flights We got ice, who brought the drinks? This 30-kilometer glacier in Patagonia's Los Glaciares National Park (not to be confused with the Perito Moreno National Park) grows and contracts, often forming a natural ice dam on the "elbow" of Lago Argentino.
How many natural features can you fit into one picture? Deep in the Canadian Rocky Mountains, Moraine air united car hotel miles travel earn flights Lake -- together with its sister Lake Louise -- is one of the most photographed landscapes air united car hotel miles travel earn flights in Banff National Park.
Yes, these rocks do look a little like elephants. But only a little. A five-hour drive south of Perth, William Bay in Denmark has turquoise waters that lap around white sands and the Elephant Rocks, which shelter an area of rock pools and granite terraces called Green's Pool.
What Ireland and Korea have in common. This volcanic island in Korea -- it's on the UNESCO World Heritage Site list -- has mountains, stunning coastal rock formations and the finest system of cave lava tubes in the world.
It cascades over one of the biggest table-top mountains in the Canaima National Park in southern Venezuela, known to the local Pemon people air united car hotel miles travel earn flights as Devil's Mountain. Most of the water evaporates as mist before reaching the bottom.
Just one of Skaftafells' impressive features. air united car hotel miles travel earn flights Formed over millions of years by volcanic eruptions, rivers and glaciers, the Skaftafell air united car hotel miles travel earn flights National Park in southern Iceland has a variety of striking landscapes. These include an overhanging wall of geometric black basalt rocks on the Svartifoss waterfall, which inspired the architecture of Reykjavik's National Theatre, and the majestic Skaftafellsjökull glacier that seems to have frozen in mid-flow.
Drive Road 1 for 326 kilometers east of Reykjavik. Buses from Reykjavik run to the park in summer. www.vatnajokulsthjodgardur.is . Self-guided hikes of Skaftafell are outlined on the official website. www.vatnajokulsthjodgardur.is
It is also the highest commercially navigated lake in the world and is home to indigenous people including the Aymara and the Quechua. Its vast expanse of water is often cloaked in light mist and has inspired numerous local legends.
Not much to look at, but still spectacular. UNESCO describes the Wadden Sea as "the largest unbroken system of intertidal sand and mud flats in the world." In other words, it's a surreal hinterland along the coast of Germany and the Netherlands air united car hotel miles travel earn flights that combines wide-open stretches of sand and shallow seas.
After trains and caves, here's another way to get underground. Nominated as one of the New 7 Wonders of Nature , the Puerto Princesa Subterranean River runs for 8.2 kilometers underground and boasts limestone karst formations, stalactites and stalagmites.
Freshwater snorkeling at its best. This series of shallow lakes in the heart of Croatia air united car hotel miles travel earn flights are a nature lover's paradise, with clear waters pooled air united car hotel miles travel earn flights in between rocky canyons and dramatic waterfalls gushing over cliff edges.
Wooden walkways make access easy for visitors. Swimming is forbidden inside the national park, but there are places for a dip outside, such as Korana Village. Look out for freshwater fish and brown bears in the surrounding hills.
More water than you'll bathe in, drink and flush in your lifetime. The Zambeze air united car hotel miles travel earn flights River cascades air united car hotel miles travel earn flights over a cliff stretching more 1.7 kilometers, making this waterfall, known by its local name as Mosi-oa-Tunya ( smoke that thunders), a stunning sight.
Swimming with the fishes, air united car hotel miles travel earn flights in a good way. Made up of nearly 3,000 individual reefs, the Great Barrier Reef off the coast of Queensland extends for 2,600 kilometers and is the world's largest structure made of living organisms. It's even visible from space.
A favorite on UNESCO's World Heritage list, this delicate ecosystem is home to porpoises, green sea turtles, whales and dugongs. But the reef is threatened by climate change and coral bleaching that occurs when water temperatures rise.
Base your visit from any of the towns on the east coast of Queensland between air united car hotel miles travel earn flights Gladstone and Thursday Island. www.gbrmpa.gov.au . Choose a tour operator approved by the Marine Park authority: www.gbrmpa.gov.au
The 21-kilometer Baradla-Domica cave stretches over the Hungary-Slovakia border. The Gombasek cave is probably the more photographed, with its impressive rock formations giving it the feel of a fairy tale city.
While the volcano is still active and has recently been closed off to the public, it's still a point of pilgrimage for Javanese Hindus, who congregate every year in the Kasada festival, during which live chickens are thrown into the crater.
Worst thing about Wineglass Bay -- the water sports that make you feel lazy. Freycinet's white sand beach at Wineglass Bay, pink granite rock formations and Hazards peaks are among Tasmania's most stunning coastal scenery. The park is northeast of Hobart.
Spirit of Tasmania ( www.spiritoftasmania.com.au ) run a night ferry from Melbourne to Devonport from AU$394 (US$410) return. Use Tasmanian Redline coaches to reach Freycinet National Park. www.parks.tas.gov.au
Great reward at the end of a rain forest trek. The Iguazú River drops up to 82 meters over a 2.7 kilometer-wide ledge of the Paraná Plateau. The waterfalls are accessible from Brazil, Argentina an