21.   The elephant drivers are often encouraged by tourists or tour operators to move in very close to browsing rhinos, on occasion surrounding them.

22.   A group of sports fans are claiming they were overcharged and let down by a tour operator who sold them tickets to the Olympic Games.

23.   The Which?

24.   Holiday Which?

25.   None of the Lunn Poly or Thomas Cook branches had any signs informing customers of their links with tour operators.

26.   Analysts pointed out that owning shops gives tour operators other advantages.

27.   Many visitors come from the North-East of England following the introduction of whistle-stop tours of Ireland by tour operators Wallace Arnold.