Ethiopia's Lalibela has 11 churches carved downward into volcanic rock, the Simien Mountains hold endemic gelada baboons in 4,000m crags, and the Danakil Depression's Erta Ale lava lake glows at one of Earth's lowest points.
Dry season the best window for highlands trekking, Lalibela Genna celebrations on January 7 with white-robed pilgrims, and Danakil Depression accessible.
Hot dry season transitioning to short rains, Simien wildflowers blooming, and Timkat Epiphany processions across the highlands have just passed.
Long rainy season makes northern roads unreliable, but Addis Ababa stays cool and the Meskel festival on September 27 fills Meskel Square.
Ethiopian New Year and Meskel cross-finding festival turn Addis Ababa into the country's biggest party, and the rains taper by late month.