Salzburg

170 mil långa Återföreningsexpressen löper längs Vietnams tropiska kust. Vagabonds utsända gjorde den episka tågresan från söder till norr.

Vart du än på bron dig vänder, står din lycka i stenhänder. Ja, så är fallet på den nyöppnade Golden Bridge utanför Da Nang i Vietnam.

Steadily being transformed into a vast new city, Tuy Hoa is characterised by its vast plaza and multi-laned boulevards. It’s a possible overnight stop to break up a longer journey, especially for cyclists brave enough to tackle Hwy 1, but most visitors are just passing through.

Around 40km west of Danang lies lush Ba Na. Originally established in 1919 by the French as a hill resort, the 200-odd old villas are now ruined, but the refreshingly cool weather and gorgeous countryside views make it a worthwhile trip from Danang.

With limestone outcrops amid serene rice paddies, Tam Coc is best appreciated on a languorous rowing-boat ride, with the soundtrack of the river lapping against the oars.

Designated a Unesco World Heritage Site in 2003, the remarkable Phong Nha-Ke Bang National Park contains the oldest karst mountains in Asia, formed approximately 400 million years ago. Riddled with hundreds of cave systems – many of extraordinary scale and length – and spectacular underground rivers, Phong Nha is a speleologists’ heaven on earth.

Often referred to as the Ba Be Lakes, Ba Be National Park was established as a national park in 1992. The scenery here swoops from limestone mountains peaking at 1554m down into plunging valleys wrapped in dense evergreen forests, speckled with waterfalls and caves, with the lakes themselves dominating the very heart of the park.

The ‘rice bowl’ of Vietnam, the delta is carpeted in a dizzying variety of greens. It's a water world that moves to the rhythms of the mighty Mekong, where boats, houses and markets float upon the innumerable rivers, canals and streams that criss-cross the landscape like arteries.

If the tenacious spirit of the Vietnamese can be symbolised by a place, few sites are more symbolic than Cu Chi. At first glance there is scant evidence today of the fighting and bombing that convulsed Cu Chi during the war. To see what went on, you have to dig deeper – underground.

Dong Hoi is a pleasantly untouristed port and seaside town. It enjoys an attractive location, clinging to the banks of the Nhat Le River, and has beaches to the north and south. Recently established air links to Haiphong (for Halong Bay and Cat Ba Island) and the northern Thai city of Chiang Mai promise to significantly increase the city's appeal as a destination. Dong Hoi also has excellent transport links to the Phong Nha region.