Tucked away in India’s “Wild East” is the state of Assam. With wide open spaces, silk weaving, tea plantations, and thriving wildlife reserves, it is surprisingly absent from the tourist radar. That is exactly the sort of place for an E.Y.H.O. tour. For seven days, my husband and I explored Assam. Atop an elephant, we swayed through Kaziranga, home of the rare one-horned rhino. Kaziranga is one of the few success stories in the world of rhino conservation. The rhino populatio