SUSONO, Shizuoka — Fuji Safari Park has launched an elephant swimming display again this year, enabling visitors to see the hefty creatures swimming underwater in a special pool with clear acrylic walls.

This is the 10th year that the park in the city of Susono in central Japan’s Shizuoka Prefecture has launched the event, during which visitors in vehicles can watch elephants swimming. The elephant pool, which is about 60 meters long and around 3 meters deep, was set up in 2015.

At a Laotian trainer’s signal, the Asian elephants enter the pool and begin “elephant paddling” with their four legs, sometimes extending their noses into the air like snorkels. During a recent visit, a calf was seen following its mother in the water while another male elephant — perhaps not a good swimmer — pushed his hind legs against the bottom of the pool to move forward.

Park public relations official Maki Fujino, 26, commented, “They skillfully use their front and back legs to swim. We hope people will be able to observe their powerful form.” The elephants swim almost every day during the summer, but the swimming may be canceled if the weather is bad or if the elephants are in poor health.