“Orangutan Adventure In North Sumatra”

6 days, 5 nights; departures November-December 2014. Highlights: In Tangkahan, ride elephants through river and into jungle/in Bukit Lawang, orangutan sanctuary in Gunung Leuser National Park/Sipiso-piso Waterfall in Batak Highlands/on Samosir Island in Lake Toba, see Tor-Tor dancers. Land, from $820. Single supp., from $143.

Backyard Travel (Bangkok, Thailand; phone +66 2 633 9074).