To celebrate the upcoming Christmas season, divers at Tokyo's Sunshine Aquarium dressed up like Santa and its loyal companion reindeer to surprise the visitors on Monday. /VCG Photo

The divers swam among the shoal of over 1,400 fish in a deep fish tank holding approximately 240 tons of water, the Mainichi reports. /VCG Photo

While dancing with the fish, Santa and the reindeer tossed out vegetables and shrimps as Christmas gifts for the fish. /VCG Photo

The show, called "Santa Dive," will last until Christmas Day on December 25. /VCG Photo