Hotels in Sumatra, Indonesia

Sumatra is a vast Indonesian island straddling the equator, famous for its wild orangutans in Bukit Lawang and the massive volcanic Lake Toba. The climate is tropical and humid year-round, with a dry season from June to September perfect for trekking to see orangutans or surfing the world-class waves at Mentawai Islands (water temps around 82°F/28°C). During the wetter months from October to May, you can explore Medan's colonial architecture or hike to the steaming crater of Mount Sinabung-just check for eruption alerts.