Salzburg

Just off the Danang Beach coastal road, the Marble Mountains (Ngu Hanh Son) consist of five craggy marble outcrops topped with pagodas. Each mountain is named for the natural element it’s said to represent: Thuy Son (Water), Moc Son (Wood), Hoa Son (Fire), Kim Son (Metal or Gold) and Tho Son (Earth). The villages that have sprung up at the base of the mountains specialise in marble sculpture, though they now astutely use marble from China rather than hacking away at the mountains that bring the visitors in.

Tay Ninh town, the capital of Tay Ninh province, serves as the headquarters of one of Vietnam’s most intriguing indigenous religions, Cao Daism. The Cao Dai Great Temple at the sect’s Holy See is one of Asia's most unusual and astonishing structures. Built between 1933 and 1955, the temple is a rococo extravaganza blending the dissonant architectural motifs of a French church, a Chinese temple and an Islamic mosque.

Dong Van is the Ha Giang region's most popular overnight stop and, not coincidentally, is home to some solid accommodation and food. But the real reason to come is for the Sunday market, one of the region's biggest and most colourful. The town is also a good base for day treks around nearby minority villages and nearby sights such as the Lung Cu flag tower and the Lung Cam Cultural Tourist Village.

The spectacular karst limestone landscapes around Ninh Binh and Tam Coc are ideal for exploring by boat or bicycle, and there are stellar opportunities for caving and trekking amid the fast-developing travellers' scene of the Phong Nha-Ke Bang National Park. Dong Hoi, the coastal gateway to Phong Nha, also has an enjoyable low-key beach scene and good restaurants.

Ha Tien may be part of the Mekong Delta, but lying on the Gulf of Thailand it feels a world away from the rice fields and rivers that typify the region. There are dramatic limestone formations peppering the area, which are home to a network of caves, some of which have been turned into temples. Plantations of pepper trees cling to the hillsides. On a clear day, Phu Quoc Island is easily visible to the west.

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.

A breathtaking cluster of granite islands, set in aquamarine seas around 15km directly offshore from Hoi An, the Cham Islands make a wonderful excursion. The islands were once closed to visitors and under close military supervision, but now day trips, diving or snorkelling the reefs, and even overnight stays, are possible.

A French-era hill station, this national park reaches a peak of 1450m at Bach Ma mountain, only 18km from the coast. The cool climate attracted the French, who built over a hundred villas here. Not surprisingly the Viet Minh tried hard to spoil the holiday – the area saw some heavy fighting in the early 1950s and again during the American War.

Lang Co is an attractive island-like stretch of palm-shaded white sand, with a turquoise lagoon on one side and 10km of beachfront on the other. As a beach resort it's more geared to Vietnamese day trippers than Western travellers, but if the weather's nice the ocean is certainly inviting (if you stay away from the central section, which could be cleaner). High season is April to July. From late August to November rains are frequent, and from December to March it can get chilly.

Buon Ma Thuot can trace its origins back to a simple rural settlement: the Ede name translates as ‘Thuot’s father’s village’. But Buon Ma Thuot (pronounced ‘boon me tote’) has long outgrown its rustic origins and is now a thoroughly modern, affluent city.