Chile is long and narrow. It is, in fact, 2,670 miles long – about the same distance as London to Tehran in Iran – but only 217 miles wide at its maximum. It almost reaches into Antarctica in the south and, in the north, is arid desert. Parts of the Atacama Desert, amidst its total area of 49,000 square miles, represent the driest place on earth; the centre of the desert is reputed to have seen no rain for 25 million years (give or take 10 million years either way).

San Pedro, Atacama, Chile

San Pedro, Atacama, Chile

After a two hour 10 minute flight north from Santiago, in the central valley, to the mining town of Calama, it is a further 75 minute drive through the desert to San Pedro de Atacama, surrounded by volcanic peaks thousands of metres high, four of which are active. Millions of years ago the area was a swamp; the water remains, but is now about 1.5 km underground. The oasis was originally much larger but, in the 16th century, many of the slow-growing trees were cut down by the Spanish to build houses.

The final part of the drive to San Pedro passes Moon Valley to the right and Death Valley to the left. The landscapes are contorted and surreal, salt pans abound and, below the surface, is just about every kind of mineral imaginable; this is where the wealth of Chile lies. It is not in any way a monotonous desert landscape, but is one of lunar terrain, jagged peaks, giant dunes, snow-capped peaks, lagoons and oases.

Panorama of the Moon Valley, Atacama.

Moon Valley, Atacama, Chile

The entry into the small oasis of San Pedro – with its adobe houses, mud-brick walls and unmade dirt roads, regularly watered to keep them in shape and cut down the dust, reminds one of a Yemeni village. Behind a high adobe wall on the outskirts of the village lies the Tierra Atacama hotel. In common with its sister hotel in Patagonia, the property blends into the landscape. Fig and pomegranate trees and a myriad of plants and vegetables cool the gardens, dragonflies flit across pools of water and the views from the rooms are towards the 5,916m high, snow-capped, majestic and perfectly-formed volcanic peak of Volcan Licancabur. Cool by day and warm by night – essential in the desert – the hotel is the perfect oasis-within-the-oasis of San Pedro.

Petroglyphs, Atacama, Chile

Petroglyphs, Atacama, Chile

But there is far too much to see and do to spend too much time relaxing in the cool surroundings of the Tierra Atacama. There is a wonderful excursion to view 6,000 year old petroglyphs, hand-hewn by indigenous tribes and the conquering Incas, followed by a visit to Rainbow Valley with unique rock formations dating back millions of years – to when the giant plates of the earth’s crust came together. All around are llamas, guanacos and vicunas; herds of wild donkeys, escaped from the conquistadors in the 16th century, roam the parched plains.

Panorama, Rainbow Valley, Atacama, Chile

Rainbow Valley, Atacama, Chile

El Tatio Geyser Fields, Atacama, Chile

El Tatio Geysers, Atacama, Chile

Climbing even higher, and over an hour’s drive from San Pedro, is the El Tatio Geyser Field. At 4,462 metres above sea level, these fields, amongst the highest in the world, have 80 active geysers – making the El Tatio field the third largest on earth. And, on the way back, why not enjoy a relaxing soak in the thermal baths of Puritama? That’s exactly what we did for a pleasant hour.

At 3km from San Pedro is the pre-Colombian site of the ancient fortress of Pukara de Quitor. Overrun by Spanish conquerors in the 16th century, the fort commands a dramatic mountain peak giving 360 degree vision for tens of miles. It takes an hour to walk to the top and you have to be fit, but the views are worth every step.

Fortress of Pukara de Quitor, Atacama, Chile

Fortress of Pukara de Quitor, Atacama, Chile

The Atacama will take your breath away in more ways than one – San Pedro is located at 2,407 m – almost 8,000 feet – above the sea! It’s recommended to acclimatise over the course of a few days, and to drink a lot of liquids to help the body adjust. Having seen Patagonia, in the south, first of all on our trip to Chile, then the beautiful city of Santiago, the Atacama Desert was a fitting grand finale. As one of our party said: “I learnt about the Atacama Desert at school. Little did I imagine that one day I’d be standing in the midst of its rugged terrain; quite amazing!”.