The Binnen Spaarne canal, Haarlem, North Holland, Netherlands, Europe

Aare River, Thun, Canton of Bern, Switzerland

Preveli Beach, high angle view, Rethymno, Crete, Greek Islands, Greece

Rhone River, St. Benezet Bridge, UNESCO, Avignon, Grand Avignon, Vaucluse, Provence-Alpes-Cote d'Azur, France

Architecture in central Amsterdam, North Holland, The Netherlands

View of moliceiro boats floating on Aveiro river main lagoon, Aveiro, Portugal, Europe

Grossmunster and Limmat River at sunrise, Zurich, Switzerland

Gil Eannes, former hospital ship now youth hostel, Viana do Castelo, Minho-Lima, Portugal

Zurich Main Station and Landesmuseum, Zurich, Switzerland

Viana do Castelo, Minho-Lima, Portugal

Viana do Castelo, Minho-Lima, Portugal

Riverboat Tours on Barron River, Kuranda, Cairns, Australia

A bevy of mute swans in Windsor, Berkshire, England, United Kingdom, Europe

Net fisherman in rowing boat, village of Ramadi, west bank of the Nile south of Edfu, Egypt, North Africa, Africa

Aerial view of Victoria Quays and Sheffield city skyline at dusk, Sheffield, South Yorkshire, England, United Kingdom, Europe

View of canal boats at Victoria Quays at dusk, Sheffield, South Yorkshire, England, United Kingdom, Europe

Aerial view of Victoria Quays and Sheffield city skyline at dusk, Sheffield, South Yorkshire, England, United Kingdom, Europe

Aerial view of Victoria Quays and Sheffield city skyline at dusk, Sheffield, South Yorkshire, England, United Kingdom, Europe

Narrow boat on Pontcysyllte Aqueduct, UNESCO, Llangollen Canal over valley of the River Dee, Wales, United Kingdom

Thomas Telford's Menai Suspension Bridge crossing the Strait, Anglesey island, Wales, United Kingdom

Banos de Agua Santa, Tungurahua Province, Ecuador

Trekkers along the Reno di Medel river, Val Piora, Canton Ticino, Switzerland

Man casting a weighted throw net at Nosara Boca (river mouth), local fishing spot, Boca Nosara, Nosara Beach, Guanacaste, Costa Rica

Men with throw nets and freshly caught fish, Nosara Boca (river mouth), local fishing spot, Boca Nosara, Nosara Beach, Guanacaste, Costa Rica

Tourists on boat trip through the mangrove fringed Nosara River estuary, with locals handline fishing, Boca Nosara, Nosara, Guanacaste, Costa Rica

View of rickshaws near Togetsukyo Bridge over Katsura River, Sagatenryuji Susukinobabacho, Ukyo Ward, Kyoto, Honshu, Japan

View of rickshaws near Togetsukyo Bridge over Katsura River, Sagatenryuji Susukinobabacho, Ukyo Ward, Kyoto, Honshu, Japan

View of rickshaws near Togetsukyo Bridge over Katsura River, Sagatenryuji Susukinobabacho, Ukyo Ward, Kyoto, Honshu, Japan

Media City, Salford Quays, Manchester, Lancashire, England, United Kingdom

Imperial War Museum North at sunset, Salford Quays, Manchester, Lancashire, England, United Kingdom

View of Glico sign of Dotonbori, vibrant entertainment district near the river at dusk, Osaka, Honshu, Japan

View of restaurants and Ebisu Tower Ferris Wheel in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

View of tour boat, restaurants and tour boat in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

View of colourful facades of restaurants in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

City of London, one of the leading centres of global finance, Londobn, England, United Kingdom

Entrance pavilion of Guangji Bridge, built in 1170, one of China's four famous ancient bridges, Chaozhou, Guangdong province, China

Esplanade bridge and esplanade theaters on the bay, Singapore

Skyline of Singapore Marina Bay at night with Marina Bay Sands, Art Science museum and tourist boats, Singapore

Skyline of Singapore Marina Bay at night with Marina Bay Sands, Art Science museum and tourist boats, Singapore

Traditional Abra ferries crossing Dubai Creek, which divides the city into two main sections of Deira and Bur Dubai, Dubai, United Arab Emirates

The 98m Gongchen Bridge over the Grand Canal, UNESCO, Hangzhou, Zhejiang Province, China

A detailed view of blue rowboats docked on the Arashiyama River in Kyoto, Honshu, Japan

Sangha River in the Trinational Lobeke National Park, Republic of Congo

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

Locals in a canoe on the Sangha river, Dzanga Sangha National Park, UNESCO, Central African Republic

Locals in a canoe on the Sangha river, Dzanga Sangha National Park, UNESCO, Central African Republic

Boy in canoe, Sangha River, Dzanga Sangha National Park, UNESCO, Central African Republic

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) scratching its back on tree, Brooks River, Katmai National Park near Bristol Bay, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) disputing fishing rights for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear sow (Ursus arctos) watching human activities at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

Young brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) disputing fishing rights for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Alaskan brown bears (Ursus arctos) sow and cubs foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Shoreline view of the historic Bainbridge Steel Dam near Ash Fork, Kaibab National Forest, Arizona, United States of America

Sacks of dates, palm grove of Zagora, Draa River valley, Province of Zagora, Region Draa-Tafilalet, Morocco

Cyclist on promontory facing the Ksar of Ait-Ben-Haddou, UNESCO, Ounila River valley, Ouarzazate Province, region of Draa-Tafilalet, Morocco

Hikers returning from village of Tighza passing flowering pear trees in snow, Ounila River valley, Ouarzazate Province, Draa-Tafilalet region, Morocco

Fisherman with dugout canoe on the Mekong River, Pakbeng, Oudomxay Province, Laos

Canoe trip on a branch of the river connecting the lakes Almajas and Asekas around Ginuciai, Aukstaitija National Park, Lithuania, Europe

Seagulls along the river Corrib with the Wolfe Tone Bridge in the background, Galway, Connemara, County Galway, Connacht, Republic of Ireland

Tourist boat on Herengracht canal, Amsterdam, The Netherlands, Europe

25 Fountains cirque, Rabacal, Madeira island, Atlantic Ocean, Portugal

Rafting, Snowdonia National Park (Eryri), Wales, United Kingdom

View towards Tiber island (Isola Tiberina) on the left, and Ponte Cestio, Rome, Lazio, Italy

View towards Mausoleum of Hadrian (Castel Sant'Angelo) (Castle of the Holy Angel) from Ponte Sant'Angelo, UNESCO, Rome, Lazio, Italy

View of rickshaws near Togetsukyo Bridge over Katsura River, Sagatenryuji Susukinobabacho, Ukyo Ward, Kyoto, Honshu, Japan

View of colourful facades of shops and restaurants in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

View of colourful signs in backstreet in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

Two young girls bathing in the Wadi Bani Khalid, Hajar Mountains, Sultanate of Oman, Arabian Peninsula

Fishing dhow at Sur, Sultanate of Oman, Arabian Peninsula

View of restaurants and tour boat in Dotonbori, vibrant entertainment district near the river, Osaka, Honshu, Japan

Fishermen standing in row ready to start pulling rope during fish harvest, Rozmberk Pond, UNESCO Biosphere, Trebon, Jindrichuv Hradec District, South Bohemian Region, Czech Republic (Czechia), Europe

Ferry boats in Rio Antirrio area crossing to Peloponnese region, Greece

View of Opera House and harbourside saunas during winter at sunrise, Oslo, Norway, Scandinavia

Top view of boat full of fresh fruits on sale, Floating Market, Bangkok, Thailand

Winter Lights at Canary Wharf, Docklands, London, England, United Kingdom

Tannery, Medina, Fes, UNESCO, Morocco

Boys in canoe, Sangha River, Dzanga Sangha National Park, UNESCO, Central African Republic

Women washing by hand in the Sangha River, Dzanga Sangha National Park, UNESCO, Central African Republic

Pygmy men going net hunting, Dzanga Sangha National Park, UNESCO, Central African Republic

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Govan to Partick Bridge, footbridge, River Clyde, Glasgow, Scotland, United Kingdom

Govan to Partick Bridge, footbridge, River Clyde, Glasgow, Scotland, United Kingdom

Govan to Partick Bridge, footbridge, Riverside Museum, The Glenlee Tall Ship, River Clyde, Glasgow, Scotland, United Kingdom

Electric mountain bikers on road from Tamegroute toward the South (N 9), Draa River valley, Province of Zagora, Region Draa-Tafilalet, Morocco

Group of people rushing down sand dunes at Tinfou, near Tamegroute, Draa River valley, Province of Zagora, Region Draa-Tafilalet, Morocco

Mountain bikes and man offering camel ride at foot of Tinfou dunes, near Tamegroute, Draa River valley, Zagora Province, Draa-Tafilalet region, Morocco

Electric mountain biker off the road from Zagora to the south (N 9), Draa River valley, Province of Zagora, Region Draa-Tafilalet, Morocco

Electric mountain bike rider on track between Ouarzazate and Ait Ben Haddou, Ounila River valley, Ouarzazate Province, Draa-Tafilalet region, Morocco

Electric mountain bike riders on track between Ouarzazate and Ait Ben Haddou, Ounila River valley, Ouarzazate Province, Draa-Tafilalet, Morocco

Biker crossing the river with ford near the village of Tighza, Ounila River valley, Ouarzazate Province, region of Draa-Tafilalet, Morocco

Children of Tighza village playing with a ball, Ounila River valley, Ouarzazate Province, region of Draa-Tafilalet, Morocco