American women tourists aboard the Mekong Princess, as it sails down the Mekong Delta from Cambodia to Vietnam.

American woman tourist aboard the Mekong Princess as it sails down the Mekong Delta from Cambodia to Vietnam, Indochina, Southeast Asia, Asia

American woman tourist aboard the Mekong Princess as it sails down the Mekong Delta from Cambodia to Vietnam, Indochina, Southeast Asia, Asia

American women tourists aboard the Mekong Princess, as it sails down the Mekong Delta from Cambodia to Vietnam.

Couple enjoying the view of the Amazon River aboard a river boat, Peru, South America

Couple posing for the camera overlooking the Amazon River aboard a river boat, Peru, South America

Couple enjoying the view of the Amazon River aboard a river boat, Peru, South America

Fruit plate of dates and apple served aboard the Dahabeah, passenger river boat of the Lazuli fleet, sailing on the Nile river, Egypt, North Africa, Africa

Stuffed eggplant dish served aboard the Dahabeah, passenger river boat of the Lazuli fleet, sailing on the Nile river, Egypt, North Africa, Africa

Salad served aboard the Dahabeah, passenger river boat of the Lazuli fleet, sailing on the Nile river, Egypt, North Africa, Africa

Guests aboard the Lindblad Expeditions ship National Geographic Explorer, South Atlantic Ocean

The live-aboard dive boat Amphoria, Bangka Island, off the northeastern tip of Sulawesi, Indonesia, Southeast Asia, Asia

Passengers riding aboard the Yamanote loop line train that encircles greater metropolitan Tokyo, Japan, Asia

Prince Siddhartha escapes his palace, accompanied by Channa aboard his horse Kanthaka, scene from the life of the Buddha, Seoul, South Korea, Asia

Cyclades, Aboard The Ferry, Greece

The Drake Passage from aboard the National Geographic Endeavour

Polar bear (Ursus maritimus) and tourists aboard eco-tourism ship. Spitzbergen, Polar High Arctic, North Atlantic.

Whalewatchers aboard the "Alaska Adventurer" with a pod of 5 Orcas (Orcinus orca) encountered off Gardner Point on the south end of Admiralty Island, Southeast Alaska

Tourists aboard the Dale Princess, Martins Haven, Pembrokeshire, Wales, UK, Europe

Tourists aboard the Dale Princess, Martins Haven, Pembrokeshire, Wales, UK, Europe

The Drake Passage from aboard the National Geographic Endeavour

The Drake Passage from aboard the National Geographic Endeavour

Strawberry Poison Frog (Dendrobates pumilio), adult, Bastimentos National Park, Bocas del Toro, Panama. The strawberry poison frog or strawberry poison-dart frog (Oophaga pumilio or Dendrobates pumilio) is a species of small amphibian poison dart frog found in Central America. It is common throughout its range, which extends from eastern central Nicaragua through Costa Rica and northwestern Panama. The species is often found in humid lowlands and premontane forest, but large populations are also found in disturbed areas such as plantations. The strawberry poison frog is perhaps most famous for its widespread variation in coloration, comprising approximately 15���30 color morphs, most of which are presumed to be true-breeding. O. pumilio, while not the most poisonous of the dendrobatids, is the most toxic member of its genus. The species is most diverse in Panama with varieties in vivid shades of all red, orange, blue, yellow or green, green and yellow, white with red, orange or black and spotted varieties. The most colorful mix is found in Isla Bastimentos Marine National Park though not all in one place. Colors vary by location. A beach on the north side of the island is named after the species. Two of Southern Explorations' Panama tours visit red frog habitat. Both the eight-day Panama Adventure trip and eleven-day Panama Highlights trip spend time in Isla Bastimentos Marine National Park and the former also goes to Red Frog Beach. The red frog is not as poisonous as some of its cousins and is not a threat to humans. It subsists on a diet of ants that dine on poisonous plants, providing the red frog its protective skin toxin. Males attract females with a loud quick chirp. To hear the distinctive sound before you depart on your Panama tours, go to the University of Michigan Museum's biodiversity website (www.animaldiversity.ummz.umich.edu.) After birth, the tadpoles climb aboard the mother who deposits them in different protected areas where she retu

Bottlenose Dolphin (Tursiops truncatus) riding waves. Dolphins in Tuamotu islands, Rangiroa Atoll, cruise aboard the Paul Gauguin cruise, Society Islands, French Polynesia, South Pacific.

Women selling merchandise in a floating market, Ywama village, Inle Lake, Shan State, Myanmar, (Burma)

One Tree Rock, Boo Island, Misool, Raja Ampat, West Papua, Indonesia, Pacific Ocean

Soft coral, Dendronephthya sp., and schooling bigeye snappers, Lutjanus lutjanus, Raja Ampat, West Papua, Indonesia, Pacific Ocean

A diver swims past Boo Windows on Boo Island, Raja Ampat, West Papua, Indonesia, Pacific Ocean

Guests enjoy champagne and canapes in Kaisersaal ballroom aboard cruise ship MS Deutschland, Reederei Peter Deilmann, South Pacific Ocean, near Chile, South America

Golden waitress Maria aboard cruise ship MS Deutschland, Reederei Peter Deilmann, South Pacific Ocean, near Chile, South America

Cabaret Performance aboard MV Victoria Queen, Victoria Cruises, Yangtze River, China

Actress Veronica Ferres on the film set of Die lange Welle hinterm Kiel, aboard cruiseship MS Delphin, Dubrovnik, Croatia, Europe

Passengers listen to lecturer aboard an Amazon River Boat, Near Santarem, Para, Brazil, South America

Deck seen from Royal Clipper crow's nest platform, Aboard Sailing Cruiseship Royal Clipper (Star Clippers Cruises), Mediterranean Sea, near Ponza, Pontine Islands, Italy

MS Bremen, wooden deck, Aboard MS Bremen Cruise Ship, Hapag-Lloyd Kreuzfahrten, Germany

Flight attendant hands bread to passenger in Poerava Business Class aboard Air Tahiti Nui Boeing 787 Dreamliner aircraft on the flight from Paris Charles de Gaulle Airport (CDG) in France to Los Angeles International Airport (LAX) in the United States

Flight attendant hands menu to passenger in Poerava Business Class aboard Air Tahiti Nui Boeing 787 Dreamliner airplane on the flight from Paris Charles de Gaulle Airport (CDG) in France to Los Angeles International Airport (LAX) in the United States

Royal Clipper full sail seen from platform of crow's nest, Aboard Sailing Cruiseship Royal Clipper (Star Clippers Cruises), Adriatic Sea, near Kotor, Montenegro

Fine Dining in MS Bremen Restaurant, Aboard MS Bremen Cruise Ship, Hapag-Lloyd Kreuzfahrten, Germany

Martini on the rocks with glacial ice aboard cuiseship MS Deutschland (Deilmann Cruises), False Bay, Livingstone Island, South Shetland Islands, Antarctica

Illuminated gangway aboard AIDA Bella cruiser

Early Bird Breakfast aboard Cruiseship MS Astor, near Leknes, Lofoten, Nordland, Norway, Europe

Ten Thousand Arm Buddha Performance,Aboard MV Victoria Queen, Victoria Cruises, Yangtze River, China

Airshow flight tracking display aboard Lufthansa Airbus A340-600, above Chile, South America, America

Passengers enjoying coffee and cake on pool deck aboard cruiseship MS Deutschland (Deilmann Cruises), South Atlantic Ocean, South America, America

MS Bremen Cruising Smooth North Sea Waters, Aboard MS Bremen Cruise Ship, Hapag-Lloyd Kreuzfahrten, Germany

Lupines and Gorse Alongside Railroad Tracks, Aboard TranzAlpine Train from Christchurch to Greymouth, near Arthur's Pass, South Island, New Zealand

Friendly locals aboard former fishing boat Victoria, Chioggia, Veneto, Italy, Europe

Royal Clipper Atrium Dining Room, Aboard Sailing Cruiseship Royal Clipper (Star Clippers Cruises), Mediterranean Sea, near Sicily, Italy

Lunch Buffet in Atrium Restaurant, Aboard Sailing Cruiseship Royal Clipper (Star Clippers Cruises), Adriatic Sea, near Rovinj, Istria, Croatia

Fine Dining in MS Bremen Restaurant, Aboard MS Bremen Cruise Ship, Hapag-Lloyd Kreuzfahrten, Germany

Cold Carlsberg in Hand, Aboard DFDS Canal Tour Sightseeing Boat, Nyhavn, Copenhagen, Denmark

Passengers aboard cruiseship MS Deutschland (Deilmann Cruises) looking at Antarctic icebergs, South Shetland Islands, Antarctica

Woman holds champagne glass aboard cruise ship MS Astor (Transocean Kreuzfahrten), MR, Kiel, Schleswig-Holstein, Germany

Woman photographing Antarctic iceberg aboard Cruiseship MS Deutschland (Deilmann Cruises), South Shetland Islands, Antarctica

Passengers aboard Cruiseship MS Astor admire narrow Fjord, Trollfjord, Finnmark, Norway, Europe

Chairs and tables on sundeck aboard Rhine river cruise ship, MS Bellevue, TC Bellevue, TransOcean Kreuzfahrten, Eltville On The Rhine River, Rheingau, Hesse, Germany

Beach chair with figure aboard AIDA Bella cruiser in the evening

Whirlpool aboard AIDA Bella cruiser in the evening, Mediterranean Sea

Dannebrog, Danish Flag, Aboard the Laeso Ferry, Denmark

Man Scrubs Deck aboard Luxury Yacht in Puerto Portals Marina, Puerto Portals, Mallorca, Balearic Islands, Spain

Passengers aboard cruiseship MS Deutschland (Reederei Peter Deilmann), Kiel, Schleswig-Holstein, Germany

Sunlit sculpture aboard cruise ship MS Deutschland

Man climbing up the mast of the Royal Clipper, Mastclimbing, Aboard Sailing Cruiseship Royal Clipper (Star Clippers Cruises), Adriatic Sea, near Kotor, Montenegro

Glass of champagne aboard cruiseship MV Silver Spirit at sunset, Atlantic Ocean, Europe

Prosecco welcome reception aboard the Arosa passenger ship Riva, Austria

Aboard a whale watching boat Ribeira Brava, Near Calheta, Madeira, Portugal

Hooded woman photographs landscape from aboard cruiseship MS Deutschland (Deilmann Cruises), South Shetland Islands, Antarctica

Aboard the Capt. Khlebnikov icebreaker steering through sea ice off the coast of Franklin Island, Antarctica

Passengers aboard the hot air ballon, ready to take-off, shortly after sunrise, Namib Desert, Kulala Wilderness Reserve, Namibia, Africa

Aboard the Capt. Khlebnikov icebreaker, icebergs, Antarctica

Cabin aboard Fram ship at Fram Museum on Bygdoy Peninsula, Oslo, Norway, Scandinavia, Europe

A sailboat is seen participating in the Heiniken Regatta on St. Maarten.

Senior couple show their two grandchildren how to fish, aboard a power yacht in Somes Sound, Maine, United States of America

An aerial view of the live aboard vessel Infiniti for scuba diving off Balicasag Island, a tiny island in South West Bohol in the central Philippines. It is famous for scuba diving on the deep, vertical walls and there are some fantastic hard coral gardens at snorkeling depths, Balicasag Island, Philippines

A split scene with a shallow hard coral reef below water and island above with the live aboard dive vessel Infiniti, Philippines

Woman aboard the ferry crossing the Bani River, Mali

Gentle waves on BBC Beach in Morne Rouge Bay with tourists in the sea on the beach and aboard their tour catamaran in the aquamarine water, Caribbean

Gentle waves on BBC Beach in Morne Rouge Bay with tourists in the sea on the beach and aboard their tour catamaran in the aquamarine water, Caribbean

Vietnam, Mekong Delta, Cai Be, Passengers commuting on a small ferry boat.

A few weeks after the start of the summer campaign, the winterers who have just spent 14 months at Concordia return home. They take off from Concordia station aboard the Basler;photo), bound for Mario Zucchelli or Dumont d'Urville. Most of them make a sign indicating the village or town where they live, and the distance to Concordia. Concordia Antarctic Base