Fancy a silent disco in a lock?
All weekend
FIRE FOOD MARKET: Grab a beer and set your taste buds alight with street food cooked on open-flame grills and wood-fired ovens at the Fire Food Market. Take a look at the light installations in Guildhall Yard too — it's all part of London's Burning Festival and the Great Fire 350 commemorations. Free entry, just turn up, 3-4 September
LEONARDO DA VINCI: It's your last weekend to see Da Vinci's drawings and designs brought to life at the Science Museum. Discover his engineering designs and take part in interactive games. £10, booking recommended, until 4 September
CAMDEN LOCK: Walk down the drained Camden lock, and see results of three years of restoration work.If you don't fancy exploring, join the silent disco (Saturday, 7pm-9pm) or have a go at fishing. Free, just turn up, 3-4 September
Saturday 3 September
Visit St Paul's Cathedral after hours. Photo: Silvia Mick/ St Paul's Cathedral
LONDON FOLK FESTIVAL: Enjoy the music of a variety of artists including Faustus and The Foxglove Trio, and take part in workshops at London Folk Festival at Cecil Sharp House in Camden. £25/30, book in advance, from 11am
RIVER RACE: Cheer on amateurs and professionals as they compete in The Great River Race. Starting from London Docklands at 12.25pm, crews pass through Westminster and Putney before reaching Richmond around 3.20pm. Free, just turn up, from 12.25pm
LOUD WOMEN FEST: 25 live music acts including Dolls, Argonaut and Petrol Girls are in Tottenham for Loud Women Fest 2016, a female-led festival. £10, book in advance, from 12.30pm
BAT COURSE: Learn about the biology of bats and the 17 different species that live in Britain on this Royal Parks workshop. The eight-hour event includes a night walk in Regent's Park using your new skills to locate bats. £37, book in advance, 1pm-9pm
SEWING MACHINE MUSEUM: Look at over 600 sewing machines on display, including one given as a present to Queen Victoria's daughter, at the London Sewing Machine Museum in Balham. Free (donations welcome), just turn up, 2-5pm
DOMINO TOPPLING: Watch thousands of dominoes toppling over around the Square Mile, tracing the path of the 1666 fire of London. Part of London's Burning festival. Free, just turn up, 6.30pm
ST PAUL'S LATES: See the inside of St Paul's Cathedral at night and capture the rare moment on camera. £10, book in advance, 6pm
Sunday 4 September
An antiques fair comes to Alexandra Palace
ANTIQUES & COLLECTORS FAIR: Rummage for treasure in Alexandra Palace's Antiques and Collector Fair. £6, just turn up, 9.30am-4.30pm
ANGEL CANAL FESTIVAL: Watch Punch & Judy, listen to live music, and take part in canoeing at the annual Angel Canal Festival. There are 80 stalls selling anything and everything from bric-a-brac to canalware and food. Free, just turn up, 11am-5pm
GARDEN OPEN DAY: Clapham's Trinity Hospice Gardens stretch over two acres and today are open to raise money for charity as part of the National Gardens Scheme. £2.50, just turn up, 11am-5pm
CROYDON AIRPORT TOUR: Explore Croydon Airport and learn about the world's oldest air traffic control tower. Discover the airport's use as an airfield for the first world war, and the international flights it made until its closure in 1959. Free (donations welcome), just turn up, 11am-4pm
IMPROVISED COMEDY: The Water Poet in Spitalfields is holding an evening of improvised comedy games — with special guests too. Free, just turn up, 5pm
FIRE ON THE THAMES: David Best's representation of London's 17th century burning skyline will float along the Thames between Blackfriars Bridge and Waterloo Bridge, before being set alight to mark 350 years of the Great Fire of London. Free, just turn up, 6pm