Having had their flight cancelled, the quartet reached Dublin by foot, train, boat and mini-bus.

BBC: Scrum V team beat the ash cloud for Leinster v Ospreys

It is an account of his 24, 000-km journey, by plane, train, boat, truck and foot, across Siberia from Yekaterinburg to Magadan.

CNN: From Our Correspondent: Pathein's Four Just Men

Founded in Paris in 1849 by Pauline Moynat, the house originally achieved glory by constructing customized trunks for well-heeled train and boat travelers in an era when traversing the Atlantic took days.

WSJ: Luxury Trunks, Reinvented

Afghanistan may be landlocked, but the Marines' own elite unit, the Special Boat Service, who often train and exercise alongside the SAS, could also be deployed.

BBC: Elite UK troops stand by

The flame, in the torch or Olympic lanterns, will also be transported by more novel methods including boat, bicycle, tram and train.

BBC: London 2012: Torch relay heading for 1,000 places

It will be carried by 8, 000 bearers, or taken in a convoy and will also be transported by boat, bicycle, tram and train.

BBC: Olympic torch: Huge crowds turn out to cheer flame

The couple also owns an apartment in New York, where they run a money-management firm, but from Thursday to Monday morning, they're commuting to work by boat and then hopping on a train to the city.

WSJ: The House of The Year

Mahathir's great leisure-time activity is carpentry -- another pointer to his loner status -- and he is known to have constructed at least one serviceable boat as well as a functioning steam train.

CNN: Mahathir Mohamad

The same goes for train travel and car travel but there is an exception for travel by boat: if you travel by ocean liner, cruise ship, or other form of luxury water transportation for business purposes, there is a daily limit on the amount you can deduct.

FORBES: What Happens in Vegas: Traveling for Business