Rui Bao and Hui Bao, the first-ever giant panda twins born in South Korea, celebrated their second birthday on Monday at Everland, the county's largest theme park.

Giant panda twins Rui Bao and Hui Bao are pictured during a celebration of their second birthday at Everland Resort in Yongin ...

Twin giant pandas Rui Bao and Hui Bao celebrated their second birthday at Everland, marking their last with mother Ai Bao ...

Rui Bao and Hui Bao -- look at a bamboo cake, given by their trainers, at the Everland amusement park in Yongin, south of ...

Twin Giant panda sisters, Rui Bao and Hui Bao, are seen eating in front of a bamboo cake prepared by zookeepers at Everland ...