BiFest is a one-day event celebrating bisexuality, for bisexuals and bi-friendly people. Originating in London, it has now spread to several other UK locations.
There is a London BiFest planned for the afternoon of 23 June 2012, to coincide with World Pride. The site at london.bifest.org will have details when they're available.
Cambridge is at the early planning stages of holding a BiFest. Information will appear here when they have it.
A Manchester BiFest is planned fort he second half of 2010 – see manchester.bifest.org for details.
Wales is hosting its third BiFest in Cardiff in spring 2012: details on Facebook here.
Birmingham BiFest happened on 12 November 2011; see brum.bifest.org for details. There may be another in 2012.
Brighton BiFest happened on 7 March 2009. Details of that event are at brighton.bifest.org. There may be another soon, but no definite plans.
Oxford's third BiFest was at the East Oxford Community Centre last March; see oxford.bifest.org for details. There may be another next year, but nothing has been announced yet.