Here’s the scene. The Hai Van Pass, which crosses coastal mountains between Hue and Danang, forms a natural barrier across Vietnam’s tiny waist. Its strategic importance through centuries of conflict is signified by the various fortifications that mark the summit – including a concrete pillbox from the Vietnam War.

On my last visit to Vietnam, we stopped on the top of the pass to enjoy the stupendous views of jungle-clad mountains sloping to the misty ocean. I was taking pictures when I noticed a couple preparing to assault the pillbox. They weren’t in combat fatigues, however. They were bride and groom, she in a pink chiffon dress and high heels.

Hoan Kiem Lake, Hanoi CREDIT: GALYNA ANDRUSHKO/GALYNA ANDRUSHKO

Using a ladder, they clambered on to the circular roof of the pillbox and posed for a photographer standing below. It was a lovely vignette that said much about modern Vietnam: how far it has come in the 40 years since the end of a conflict that claimed millions of Vietnamese lives and obliterated infrastructure and landscape alike; how dynamic and optimistic its people have become.

When organised tourism from the West started in the Nineties the war was a focal point – the Cu Chi tunnels, in which the Viet Cong hid out, near Saigon (now Ho Chi Minh City) were a major draw. But the war is now a distant event for the Vietnamese, the majority of whom were born after hostilities ended.

When you arrive in the capital Hanoi, for example, I’m suggesting you head straight out of the city and into tranquil countryside to recover from the flight. Two days later, back in Hanoi, take a city tour with an experienced local guide who will show you the traditional sights, including the Temple of Literature.

From Hanoi the fantastical natural beauty of Halong Bay – karst limestone peaks rising from a shimmering sea – is a compulsory part of any trip.

For linking your stops and for day tours, hiring a car and driver (speaking some English) is not prohibitively expensive. Expect to pay around £50 a day, bookable through hotels.

A revelatory tour of the former no-man’s-land of the Vietnam War, the De-Militarised Zone (DMZ) includes my alternative to the Cu Chi tunnels, the more accessible underground village of Vinh Moc. On my visit the man who showed me around (by hand gestures as he was mute) had been born in one of the tunnels during the war – an unforgettable meeting.