Lake Toba, Sumatra, Indonesia
Lake Toba was formed in the crater of a volcano that blew long ago. There are places to stay on the lake (humble and affordable), and one place we ate had wonderful fresh guacamole. When you leave, travel on through Sumatra, where there are former prisoner-of-war camps that were run by the Japanese as well as the world's biggest flower, which blooms once a year.
-- Gail Dahlen-West, Beaumont