But, he said, it doesn't affect Tour Mobiles, a train-like service that takes tourists around the capital.

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Between finding a hotel, flight, rental car, cruise, train or tour, savvy travellers use any number of tools, from online travel agencies like Expedia to meta-search websites like Kayak, to fit all the pieces of the puzzle together.

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At Parque Berrio station, roughly the half-way point of the tour, get off the train for several more sights from the platform.

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During that tour, my job was to train carrier battle groups as they prepared for deployment.

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He has served in Iraq, where he commanded engineers rebuilding the country's infrastructure and he has also completed a tour in Afghanistan, helping to train the Afghan National Army.

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The Ministry of Defence said he had been helping to train Afghan police officers, and this was his second tour of duty in the country.

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Petraeus himself contributed to this last pattern of error, during his second tour in the country, between 2004 and 2005, when he oversaw a command to train and equip Iraqi soldiers and police.

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The second train, departing at 9:45 am, is the Baie St Paul Discovery tour, which terminates at Baie St Paul.

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Next the tour heads to the neighbourhood of Caballito via the atmospheric A-line subway that still uses the original 1903 train and passenger cars.

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