Ditto for extra days that you tack on to your trip in order to be a tourist for a bit: those days which are just for fun are not deductible.

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The parks themselves are hours, even days worth of fun for the whole family, containing themed rides for everyone and plenty of sights to see and restaurants to eat at.

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But these days does he do it for the fun, or for the worthy causes that stand to benefit from the millions made in tickets and merchandise?

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Airline travel is not fun for anyone these days.

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For a bit of respite from the fame and adulation he faces daily in South Korea, and for a bit of fun, Lee once became a taxi driver for a few days.

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Small, intimate groups of up to 15 widows meet for a few days, and there's always a fun activity lined up, such as zip-lining, surfing or skydiving.

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Last year the fun fair on the Town Moor only ran for a few days because heavy rain waterlogged the field.

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Such was the heady feeling of success that HMV would get together all of their store managers and head office staff for a three day "conference" every year, which was two and half days of fun and partying and a half day of presentations by the board.

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His family described him as a "larger than life, fun-loving young man" as they spoke for the first time since he went missing 18 days ago.

BBC: Kyle Vaughan