Trainers from Chengfeng Ocean World in Shanghai work with Little Grey. (Photo: SEA LIFE TRUST Beluga Whale Sanctuary/for China Daily)

Sea Life, Merlin's aquarium brand, is opposed to cetaceans such as whales and dolphins being kept in captivity for entertainment purposes. Merlin Entertainments provided a “substantial donation” to Sea Life Trust, a partner of Sea Life, to cover the costs of building the sanctuary and relocating the belugas.

"This project has been years in the making," said Andy Bool, head of Sea Life Trust. "This is a truly global effort and, working with our partners, leading veterinarians, and marine experts, we believe providing a more natural habitat for Little Grey and Little White to dive into cool waters and interact with the natural environment will greatly enhance their quality of life."

Rob Hicks, director of Merlin's animal and welfare department, said: “The collaboration between the two parties has been phenomenal, the key to that is to have a common aim and common goal and our colleagues in China are very excited about this project and thus it makes communication with us very clear.”