London's Skin Two Rubber Ball Weekend is one of the biggest fetish gatherings in the world, with events at venues around the capital. Naturally there is a strict dress code - think tight, tight and tighter.
Open your mind and release your body at the annual Mind Body Spirit Festival at the Royal Horticultural Halls. A huge range of 'alternative' goods, concepts, companies and individuals persuade you to embrace a spiritual future and a healthy lifestyle.
Pagans, witches, wiccans, druids and shamans gather at London's Conway Hall for an extraordinary celebration of the changing season. The Beltane Bash's parades have dancing bushes, medieval giants, live music, chanting and singing. Join in with a leafy green outfit.
The Chelsea Flower Show is the gardening Mecca of Europe. Some of the greatest exponents of the art exhibit imaginative garden designs over an 11-acre site at the Royal Hospital in Chelsea, creating a floral wonderland for the public to explore.
First held in 2002, the London International Festival of Science Fiction and Fantastic Film (to give it its full title) covers all genres. It ranges from premières of the latest blockbusters to a 48-hour film challenge for five-minute films, via all-nighter screenings.