There is another thread on Eric Newby somewhere below, describing "A short walk in the Hindukush".
Funny travel writers? How about Umberto Eco in his short story "How to travel with a salmon"? A tale of Eco traveling through Europe with a huge salted Norwegian salmon in his luggage which he tries to keep inside the mini bar of the fridge inside his various hotel rooms, and always ends up being charged for the entire contents of the fridge he had to remove to fit in the salmon?
I think, Ephraim Kishon also wrote some funny things about traveling.
But Newby is incomparable. Has anyone read "Slowly down the Ganges", it´s start being about running aground 48 times in the first two weeks of trying to navigate the Ganges near itˇs source in a little boat?