Ashley Cooper / Zodiac full of passengers from an expedition cruise watching emale Antarctic fur seal (Arctocephalus gazella) at Salisbury Plain, South Georgia, Southern Ocean.

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac in Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac with sea kayaks, Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Ashley Cooper / Members of an expedition cruise to Antarctica in a Zodiac with sea kayaks, Fournier Bay, Gerlache Strait, Antarctic Peninsula.

Franco Banfi / Man in zodiac looking at stalactites and stalagmites at Venice Pier, Krizna Jama / Cross cave, Bloska Polica, Loz valley, Slovenia. May 2018.

Theo Allofs / Polar Bear (Ursus maritimus) and tourists, Svalbard, Norway

Franco Banfi / Blacktip reef shark (Carcharhinus melanopterus) under the Zodiac, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Jami Tarris / Tourists and glacier, Spitsbergen, Svalbard, Norway

Jami Tarris / Tourists and glacier, Spitsbergen, Svalbard, Norway

Espen Bergersen / Humpback whales (Megaptera novaeangliae) lunge feeding on herring (Clupea harengus) being watched by tourists in Zodiac boat very close, Kvaloya, Troms, Norway, November

Terry Whittaker / Inflatable boat picking residents up from Summer houses, Hornstrandir, Iceland. July

Franco Banfi / Zodiac with divers leaving the M. Y. Galapagos Aggressor 1 liveaboard, North Seymour Island, Galapagos Islands, East Pacific Ocean