While in Sri Lanka in early March, I visited the Elephant Orphanage in Pinnawala. It was established in 1975 as an orphanage, nursery and captive breeding faclity. They are supposed to have the largest herd of captive elephants in the world. While there has been some controversy regarding this facility, the elephants are taken daily from the facility to the nearby river for bathing and environmental enrichment. They did seem to enjoy their time being washed and wandering about in the water with their friends.