Enrique Lopez-Tapia / Tourists on a zodiac going past icebergs in Iceberg Alley, Pleneau Island, Antarctica

Peter Cairns / 2020VISION / Group of tourists wearing waterproof clothing and life jackets photograph seabirds from zodiac boat on tour around Bass Rock, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Peter Cairns / 2020VISION / Group of tourists wearing waterproof clothing and life jackets photograph Gannet colony from zodiac boat on tour around Bass Rock, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011. Di...

Peter Cairns / 2020VISION / Group of tourists wearing waterproof clothing and life jackets in zodiac boat for seabird safari tour around Bass Rock, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Tui De Roy / Glacier with tourist expedition in inflatable zodiac, southern Greenland Fjords, Greenland

Yva Momatiuk & John Eastcott / Red rubber boat with two expedition members circle floating iceberg, summer season, Labrador Sea, Labrador, Canada

Colin Monteath / Humpback Whale (Megaptera novaeangliae) observed by tourists in a zodiac boat near Melchoir Island, Antarctic Peninsula, Antarctica

Pete Oxford / Antarctic Penninsula and tourists in Zodiac boat. Antarctica

Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax) near tourists, Monterey Bay, California

Rick Price / Tourists in zodiac on Cyclone Creek. Talbot Bay, The Kimberley, Western Australia. 2015.

Rick Price / Zodiac boat with tourists approaching site of waterfalls of King George River, during dry season. Koolama Bay, The Kimberley, Western Australia. July 2015.

Ralph Pace / Tourists and calving glacier, South Sawyer Glacier, Alaska