You have the option to head into the attractive La Sabana countryside, dotted with greenhouses that assist the region's lucrative cut-flower industry. Zipaquirá is home to a still functioning, centuries-old salt mine. Nearly 200m beneath the earth is an extraordinary, mysterious salt cathedral, its vast pillars and walls made from glistening salt. There are 14 stations of the cross sculpted by different Colombian artists.

The excursion continues across some beautiful countryside to the Guatavita Lagoon. There is a hike to the crater-lake's 3,100m rim, offering wonderful views. Legend has it that this was the site of legendary El Dorado. The ancient Chibcha king was thought to have been doused in sap and gold dust and pushed out onto the lake's calm waters in a ceremonial raft, from which he would submerge himself, rinsing off this valuable body paint. Other precious objects were believed to have been thrown into the lake as offerings, and a number have been recovered and are housed in the gold museum in Bogotá.

Little is known about the culture which produced these stone figures, but it is an impressive site in beautiful countryside and there are hiking opportunities into the surrounding area, including to the Fuente de Lavapatas, where stream water runs through channels carved into the stone.

Continue to Valle de la Cocora, a beautiful nature reserve which is home to the wax palm, Colombia's national tree and the only palm which grows above 3,000m. Follow a well-marked path up the valley and look out over the mountains’ verdant foothills, and the cultivated patchwork of fields made up of a dozen shades of green.

On the last day in the region there is the opportunity to visit the Botanical Gardens at Calarca. A series of nature trails pass abundant tropical flowers and there is an excellent insect museum and enclosed butterfly garden. Alternatively, you may prefer to take a horse-riding excursion from a nearby farm to explore the surrounding countryside.

Travel back to Armenia before boarding a flight via Bogota to the Caribbean coast and the city of Santa Marta. Santa Marta is South America's oldest surviving colonial city and it's spruced up town centre offers small scale historic charm as well as some great restaurants, bars and cafés. It is probably most famous for being where the great liberator Simon Bolivar was born.

From here it's a short journey to the incredible Parque Nacional Tayrona. There is a full day trip to this dazzling region of thick, humid jungle and exquisite unspoiled beaches fringed by coconut palms and peppered with vast, smooth boulders. It was once home to the indigenous Tayrona indians. Jungle paths follow tree-covered trails surrounded by tropical dry forest, with monkeys swinging in the trees overhead and the atmosphere heavy with heat. There are a number of restaurants and bars in the park where you can stop for lunch in the shade and take in your exotic surroundings. Of course if you'd rather have the day to explore or relax in Santa Marta then this can easily be arranged locally.

A private bus then takes you inland to the small provincial town of Aracataca (2 hours). The town is famous as the birth place of Gabriel García Márquez, and provides a good place to stop for lunch. Márquez is arguably Latin America's most famous writer and his works; (including 'One Hundred Years of Solitude') often feature in lists of the greatest novels ever written. He was born in Aracataca in 1927, and his birthplace features in some of his stories as the fictional town of Macondo. Today the family house he was raised in is a museum, and you will have time to visit the home of the Nobel Prize winning author.

A further 5 hour journey past banana and oil palm plantations leads to the small provincial town of Mompos. Situated on the eastern banks of the Magdalena River, this 16th-century town is a UNESCO World Heritage Site and one feels as if transported into a Gabriel García Marquez novel, wandering streets fronted by whitewashed colonial buildings and mansions which were once home to powerful Spanish merchants (for whom the town was an important stopping-off point on the trade route to Cartagena). Spend 2 days in these beautiful surroundings, relaxing in the shady plazas, lapping up the atmosphere, and enjoy the natural scenery on the river banks on an included boat trip.

Today, while Cartagena has expanded dramatically, the walled centre has changed very little, allowing a glimpse of 16th and 17th-century Spanish architecture and town planning. Enjoy the shade provided by the buildings in these labyrinthine, cobbled streets, and explore the monasteries, palaces, churches, plazas and imposing mansions where the overhanging balconies are heavy with flowers.

Beyond this, the city opens up: an eclectic and seductive mix of Caribbean and African influences produces a vibrant street life, with fruit stalls lining the roads and pulsating rhythms emerging from cars and houses. A guided tour will help you soak up the atmosphere of this unique city. There is also a free day to further explore the streets, visit the famous fort, relax in one of the many fantastic local restaurants or even travel further afield to spend the day in the nearby Rosario Islands.