The 2015 British Chess Championships will take place at the University of Warwick from 25 July to 8 August.
Apart from the main championship there are many competitions
to suit all tastes including ones of varying length and catering for various
grading bands. (Information on who can play is shown here).
So, if you might want to play or watch then don't book
your holiday in that period.
The website for more information is http://britishchesschampionships.co.uk/ (currently showing mostly information about the 2014 event - this will give you an idea of what you could be in for).