"A 13-mile section of Vietnam 's National Route 1A between Da Nang and Hue, the Hai Van Pass might be short in distance, but it’s long on views. Rising up and down the Truong Son range, and with a name that translates to "Ocean Cloud" Pass, the road travels through an area freighted with historical and meteorological significance—it once formed the border between the ancient Dai Viet and Champa kingdoms, and still divides the weather patterns of south and north Vietnam . The pass was often crowded with traffic for years, but a tunnel that opened nearby in 2005 drew away many of the cars and trucks, making it relatively tranquil these days. Expect coastal vistas that will leave you speechless."