Dartmouth Castle guarding the entrance to the River Dart, Dartmouth, Devon, England, United Kingdom, Europe

View of Conwy Castle, UNESCO World Heritage Site, and boats on the shore, Conwy, Conway County Borough, Wales, United Kingdom, Europe

Elbow Reef Lighthouse, the last kerosene burning manned lighthouse in the world, Hope Town, Elbow Cay, Abaco Islands, Bahamas, West Indies, Central America

View of town overlooking the harbour, Skopelos Town, Skopelos Island, Sporades Islands, Greek Islands, Greece, Europe

Colourful flowers by the lake, Varenna, Province of Lecco, Lake Como, Italian Lakes, Lombardy, Italy, Europe

Star Ferry between Hong Kong Island and Kowloon, Hong Kong, China, Asia

Landfill site, Kowloon, Hong Kong, China, Asia

Sailing boats at Windermere at sunrise, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

Father and son from the Yanomami tribe in a canoe, southern Venezuela, South America

Fishing boat on Arabian Ocean with Monsoon clouds, off popular Marari Beach, Mararikulam, Alappuzha (Alleppey), Kerala, India, Asia

Commercial fishing boats of all kinds and sizes in Homer Harbor in Kachemak Bay, Kenai Peninsula, Alaska, United States of America, North America

An evening view of the modern Harpa Concert Hall, beside the old harbour in Reykjavik, southwest Iceland, Polar Regions

Fishing boats in the harbour at Grundarfjordur, with a mountainous backdrop, on the Snaefellsnes peninsula, west Iceland, Polar Regions

View of St. Mary's Church and Whitby Abbey from across River Esk at dusk, Whitby, Yorkshire, England, United Kingdom, Europe

The Burj Khalifa, known as the Burj Dubai prior to its inauguration in 2010, a skyscraper in Dubai, United Arab Emirates, Middle East

Valle Muria beach, Lipari, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Historic buildings of Gravedona with Christmas Lights during a winter sunrise, Lake Como, province of Como Lombardy, Italian Lakes, Italy, Europe

Young couple with elevated view of flour mills and town, Mykonos Town, Mykonos, Cyclades Islands, Greek Islands, Aegean Sea, Greece, Europe

Media City UK at dusk, Salford, Manchester, England, United Kingdom, Europe

View of South Bay, looking towards the lighthouse and Grand Hotel, Scarborough, Yorkshire, England, United Kingdom, Europe

View of hotels overlooking marina and Mediterranean Sea in Cala Galdana, Cala Galdana, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Overloaded riverboat on the Congo River at sunset, Democratic Republic of the Congo, Africa

View of cafe and restaurant overlooking boats in harbour, Lovran village, Lovran, Kvarner Bay, Eastern Istria, Croatia, Europe

View of hotels and church overlooking marina at Volosko, Kvarner Bay, Eastern Istria, Croatia, Europe

Old grass roof houses among new buildings and boats in the harbour of Torshavn, Streymoy island, Faroe Islands, Denmark, Europe

Tourists taking an ice tour in a small boat watching icebergs from the Ilulissat Icefjord, just outside Ilulissat, Greenland, Denmark, Polar Regions

A view of the monument dedicated to the fallen war heroes in the city of Sisimiut, Greenland, Denmark, Polar Regions

Aerial view of Marina Bay Sands and Singapore City Harbour at night, Singapore, Southeast Asia, Asia

Aerial drone view of Miradouro da Graca with National Pantheon visible on far left, and large cruise ship moored on the Tagus River harbour, Lisbon, Portugal, Europe

Colourful houses and boats at Marina Corricella, Procida island, Naples bay, Naples province, Phlegraean islands, Campania region, Italy, Europe

London Eye, tug boat and barge, River Thames, London, England, United Kingdom, Europe

Fishermen in a small boat on the upper Nile River, amongst some of the most verdant land along the river, Egypt, North Africa, Africa

View from Punto Panoramico Ponte Santa Trinita, Livorno, Province of Livorno, Tuscany, Italy, Europe

View of beach and turquoise Indian Ocean on sunny day in Cap Malheureux, Mauritius, Indian Ocean, Africa

View of local man sat on boat viewing Le Morne from Le Morne Brabant at sunset, Savanne District, Mauritius, Indian Ocean, Africa

Sorrento, Bay of Naples, Campania, Italy, Mediterranean, Europe

Pleasure boat, Sorrento, Bay of Naples, Campania, Italy, Mediterranean, Europe

Larmor-Baden, Morbihan, Brittany, France, Europe

Vessels at King's Wharf terminal, the Royal Naval Dockyard, Sandys, Bermuda, North Atlantic, North America

Tolerance Bridge in Dubai, United Arab Emirates, Middle East

Hongkong Cultural Center, Hongkong, China, Asia

Traditional sailing boat in front of high rise buildings in Central Hongkong, China, Asia

Highrise buildings in Victoria harbour, Hong Kong, China, Asia

Highrise buildings in Victoria harbour, Hong Kong, China, Asia

Clock tower in Victoria harbour, Hongkong, China, Asia

View of the Eminonu waterfront, a major dock for ferries crossing The Bosphorus, at the southern end of the Galata Bridge over the Golden Horn, Istanbul, Turkey,Europe

Fishermen at the famous Galata Bridge, a bridge spanning the Golden Horn, Istanbul, Turkey, Europe

Long Bay, Somerset, with the Cambridge Beaches Hotel in the distance, Bermuda, North Atlantic, North America

View of golden sunset, boats and restaurants at Knysna Waterfront, Knysna, Western Cape Province, South Africa, Africa

The skyline of Harbin with the Songhua River, Harbin, Heilongjiang, China, Asia

View of restaurant overlooking marina in Jubilee Square, Simon's Town, Cape Town, Western Cape, South Africa, Africa

View of beach in Sahl Hasheesh Old Town, Sahl Hasheesh, Hurghada, Red Sea Governorate, Egypt, North Africa, Africa

View of colourful shops and bars in Hurghada Marina, Hurghada, Red Sea Governorate, Egypt, North Africa, Africa

View of boat and waterfront in Hurghada Marina, Hurghada, Red Sea Governorate, Egypt, North Africa, Africa

View of Concepcion Volcano at sunset, Ometepe Island, Rivas State, Nicaragua, Central America

Sunset over Lake Nicaragua, Ometepe Island, Rivas State, Nicaragua, Central America

River Douro at sunset, UNESCO World Heritage Site, Porto, Porto District, Norte, Portugal, Europe

Looking southwest over Captain John Burke Park on Kangaroo Point by the Brisbane River, towards the centre of Brisbane, Queensland, Australia

View of River Spree and Bode Museum, Museum Island, UNESCO World Heritage Site, Berlin Mitte district, Berlin, Germany, Europe

Fishing boats moored in the harbour, Mykonos Town (Chora), Mykonos, Cyclades, Greek Islands, Greece, Europe

Transient killer whale (Orcinus orca), breaching near whale watching boat, Monterey, California, United States of America, North America

Double rainbow, Horseshoe Falls, Maid of the Mist, Niagara Falls, Ontario, Canada, North America

View of harbour boats and harbourside shops in Bridlington Harbour at sunset, Bridlington, East Yorkshire, England, United Kingdom, Europe

A view of the Kazan Gorge from a ship cruising on the Danube River between Serbia and Romania, Europe

San Giorgio Maggiore Island, Venice, UNESCO World Heritage Site, Veneto region, Italy, Europe

Traditional Dhow sailing off the coast of the Island of Mozambique, Mozambique, Africa

Opuntia (Prickly Pear) cacti on South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Adult California gray whale (Eschrictius robustus), near boat in San Ignacio Lagoon, Baja California, Mexico, North America

Aerial of Cape Horn, southern most point in South America, Hornos island, Tierra del Fuego, Chile, South America

View of Es Calo d'en Pellicer beach in Santa Ponsa, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Sorrento Peninsula, province of Naples, Campania region, Italy, Europe

Pandeli Waterfront, Agia Marina, Leros Island, Dodecanese, Greek Islands, Greece, Europe

Pandeli Fishing Port, Leros Island, Dodecanese, Greek Islands, Greece, Europe

Aerial of the Formentor beach on the Fomentor Peninsula, Mallorca, Balearic islands, Spain, Mediterranean, Europe

View of fishing nets and boats in the harbour at Cala Rajada, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Bulog Dos Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Bulog Dos Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Liechtenstein Palace by Vltava River, Prague, Bohemia, Czech Republic (Czechia), Europe

Bulog Dos Island, Coron, Palawan, Phillipines, Southeast Asia, Asia

Aerial of the city of Mantua, UNESCO World Heritage Site, Lombardy, Italy, Europe

Harbour of the Hanseatic city of Wismar, UNESCO World Heritage Site, Mecklenburg-Vorpommern, Germany, Europe

Port Du Vallon Des Auffes, Marseille, Bouches du Rhone, Provence, Provence-Alpes-Cote d'Azur, France, Mediterranean, Europe

SS Great Britain in Bristol floating harbour, Bristol, England, United Kingdom, Europe

Traditional dhow sailing in the Indian Ocean, island of Lamu, Kenya, East Africa, Africa

Aerial view of a dhow sailing in the transparent lagoon, Paje, Jambiani, Zanzibar, Tanzania, East Africa, Africa

Historical Torre Della Linguella overlooking sea, Portoferraio, Elba Island, Livorno Province, Tuscany, Italy, Europe

Handsome derelict wooden boat on Half Moon Island snowy shore, blue sky and sun, South Shetland Islands, Antarctica, Polar Regions

Men fishing with net, Colva Beach, Goa, India, Asia

The Gateway of India, monument commemorating the landing of King George V and Queen Mary in 1911, Mumbai, Maharashtra, India, Asia

Boats on the Douro River and traditional houses of Ribeira District seen from Vila Nova de Gaia district, Porto, Portugal, Europe

Forte Stella and Lighthouse, Portoferraio, Elba, Tuscan Islands, Italy, Europe

Sunset cruise boats at the confluence of the Tonle Sap and Mekong rivers, Preah Sisowath Quay, city centre, Phnom Penh, Cambodia, Indochina, Southeast Asia, Asia

Ocean going dhow, constructed by hand from Sal wood in 400 year old tradition, on the Rukmavati River, Mandvi, Gujarat, India, Asia

Gadisar Lake in late afternoon light, Jaisalmer, Rajasthan, India, Asia

Restaurants at the harbour, Cres Town, Cres Island, Kvarner Gulf, Croatia, Europe

The city skyline and Marina, Abu Dhabi, United Arab Emirates, Middle East

View towards Gauri Kedareshwar Temple at Vijaya Nagaram and Kedar Ghat, Varanasi, Uttar Pradesh, India, Asia

View of Salford Quays looking towards the Lowry Theatre and Old Trafford, Manchester, England, United Kingdom, Europe

A fishing boat in the harbour at Grundarfjordur, with Mount Kirkjufell as a backdrop, on the Snaefellsnes peninsula, west Iceland, Polar Regions

Local paddler demonstrates kayak techniques in the Greenlandic town of Qaqortoq, Greenland, Polar Regions