Laos

Like a rural scene from an old Asian silk painting, Vang Vieng (ວັງວຽງ) crouches low over the Nam Song (Song River) with a backdrop of serene cliffs and a tapestry of vivid green paddy fields. Thanks to the Lao government closing the river rave bars in 2012, the former party scene has been driven to the fringes and the community is rebooting itself as an adrenaline-fuelled adventure destination.

Spreading across parts of all four southern provinces, the fertile Bolaven Plateau (ພູພຽງບໍລະເວນ; known in Lao as Phu Phieng Bolaven) is famous for its cool climate, dramatic waterfalls and high-grade coffee.

Luang Prabang (ຫລວງພະບາງ) slows your pulse and awakens your imagination with its combination of world-class comfort and spiritual nourishment. Sitting at the sacred confluence of the Mekong River and the Nam Khan (Khan River), nowhere else can lay claim to this Unesco-protected gem's romance of 33 gilded wats, saffron-clad monks, faded Indochinese villas and exquisite fusion cuisine.

Languid, time-trapped and somnolent during the sweltering days that batter the old city's plasterwork, Savannakhet (ສະຫວັນນະເຂດ) is a charming blend of past and present Laos. The highlight is the historic quarter with its impressive display of decaying early-20th-century architecture. There's little to do in town but wander the riverfront and cool off in one of a clutch of stylish restaurants and bijou cafes that are steadily growing in number.

From its sleepy tuk-tuk drivers to its location on the right bank of the lumbering, lazy Mekong, this former French trading post is languid to say the least. Indeed, despite being the capital and largest city of the Lao People's Democratic Republic, there's not a whole lot to do in Vientiane (ວຽງຈັນ). But that is also, quite honestly, its selling point.

Mysterious giant stone jars of unknown ancient origin are scattered over hundreds of hilly square kilometres around Phonsavan, giving the area the misleading name of Plain of Jars (ທົ່ງໄຫຫິນ). Remarkably, little is known about the Austro-Asiatic civilisation that created them, although archaeologists estimate they date from the Southeast Asian iron age (500 BC to AD 200) and were likely used for elaborate burial rituals.

Phu Hin Bun NPA (ປ່າສະຫງວນແຫ່ງຊາດພູຫີນປູນ) is a huge (1580 sq km) wilderness area of turquoise streams, monsoon forests and striking karst topography across central Khammuan. It was made a protected area in 1993 and it's no overstatement to say this is some of the most breathtaking country in the region. Exploring the NPA on foot or by boat, it's hard not to feel awestruck by the very scale of the limestone cliffs that rise almost vertically for hundreds of metres into the sky. Arguably the highlight of the NPA is Tham Kong Lor, a 7.5km river passing through the cathedral-high limestone cave.

The vast majority of travellers to Si Phan Don end up on these twin islands. Don Det (ດອນເດດ) is defined by its hippyesque party scene, though it's really quite mild and there's nothing stronger than grass in the 'happy' snacks sold openly at some bars.

Hin Namno NPA might just be one of the most stunning protected areas in Laos, if not in all of mainland Southeast Asia, and the experts seem to agree: combined with two linked protected zones in neighbouring Vietnam, the greater area – the largest karst region in the world – is, at the time of writing, under consideration as a bi-country Unesco Natural World Heritage site.

Whether it's for trekking, cycling, kayaking, ziplining or a family homestay, a visit to northern Laos is for many the highlight of their trip. Dotted about are unfettered, dense forests home to big cats, gibbons and a cornucopia of animals, with a well-established ecotourism infrastructure to take you into their heart.