Almost 2,000 limestone islands and karst formations are scattered across the remarkable World Heritage Site of Ha Long Bay, said to have been created when a dragon fell to earth. A cruise on a small junk boat is the best way to see the many islands and caves, and it's also a great place to explore by sea kayak.

Da Nang is the largest city in central Vietnam, and was the site of a major US airbase during the Vietnam War. The main point of interest in the city itself is the excellent Cham Museum, while nearby attractions include Hoi An, the Marble Mountains and the imperial citadel of Hue.

Saigon, as it was known then, was the capital of the South during the Vietnam War, and American-style capitalism has been embraced more enthusiastically here than in the North, with a clutch of shining skyscrapers standing as testament to Vietnam’s surging economic growth.

The once sleepy backwater of Kompong Som, renamed after the former king Norodom Sihanouk, is the rising star of the Cambodian coast’s burgeoning tourist industry. Here you’ll find beautiful sandy beaches and a string of laid back islands that are still largely undeveloped.

Ko Kut (also known as Koh Kood), is one of Thailand’s prettiest islands, with powder-soft sands reminiscent of the Maldives, crystal clear waters and beautiful waterfalls. Kayaking and snorkelling are the main activities here, along with relaxing on the beach and enjoying the incredible views.

Thailand’s sprawling capital is an assault on the senses, an invigorating blend of tradition and modernity. Soaring skyscrapers, air-conditioned shopping malls and an efficient public transport system combine with shimmering golden temples, ancient palaces, floating markets and at times gridlocked rush hour traffic.