Prime Minister David Cameron is in Bristol, giving his support for a yes vote in next week's referendum on whether the city should have an elected mayor.
Mr Cameron, who's also been visiting the Airbus factory at Filton, is expected to argue that the vote is a "once in a generation" chance to change the way the city is run, and that a mayor elected by the whole city will give it more power and influence.
But no campaigners, who've been giving out leaflets today, say the post would cost a million pounds over four years which could be better spent on improving services.
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The agricultural event is now in its 157th year and although there was heavy rain forecast, it didn't deter the crowds.
In true Bank Holiday style we will see some rain for a time today. However, the rest of the week is looking drier, brighter and warmer.
Big Ben's famous booming bongs will be out of action for several months during urgent repair works, the House of Commons has announced.