The Blue Planet, National Aquarium Denmark, Kastrup, Denmark

Primarily home to native Danish species from fresh- and saltwater. Among others, it includes a touch pool, and a large North Atlantic aquarium with a 15 m (49 ft) tall seabird cliff, which is home to cod, wolffish, halibut, puffin and other species. Non-native species in or near the Cold Water section are giant spider crab, giant Pacific octopus, sea anemones and more. The section also housed California sea lions for a period (their previous home, Bergen Aquarium in Norway was being renovated). In early 2014 they were moved to a permanent home at La Palmyre Zoo, France. Following modifications, a pair of sea otters moved into the former sea lion exhibit in October 2014, making the aquarium one of only two places where this species can be seen Europe (the other is Lisbon Oceanarium, Portugal).
• The Warm Ocean
This part contains the largest aquarium in Blue Planet, the 4,000,000-litre (880,000 imp gal; 1,100,000 US gal) Ocean tank. It is home to sharks (zebra shark, blacktip reef shark, wobbegongs and young scalloped hammerheads), stingrays, eagle rays, guitarfish, ocean sunfish, moray eels, golden trevallies, groupers and more that can be seen through the 16 by 8 m (52 by 26 ft) main window, which is 45 cm (18 in) thick. There is also a 16 m (52 ft) long shark tunnel. Opposite the Ocean Tank is the 16 m (52 ft) long Coral Reef with living corals and reef fish. There are also various smaller aquaria with species such as shrimpfish, leafy and weedy seadragons, seahorses, a Mediterranean aquarium, and the highly venomous stonefish, lionfish and olive sea snake.