Friday: Get a taste of Malaysia in Trafalgar Square between 3-10pm with Malaysia Night, featuring traditional and contemporary performances and loads of street food to try (free entry).
Science Uncovered is the Natural History Museum's biggest ever late giving you the chance to be a CSI for a night, work alongside museum scientists at an operating table or just prop up the Science bar, between 4-11pm (free).
Experience the Heygate Estate after dark before it gets knocked down with ghostly after dark storytelling in the Supernatural Urban Forest from 8pm. Email firstname.lastname@example.org to book your place and find out where to meet (free).
Saturday: Watch out for dance, music, theatre, tug of war, films, dog show, wine tasting, beer tent, fashion show and general joymaking at Bermondsey Street Festival with kids stuff starting at 11am and stuff going on till late (free).
Embark on a sustainable transport treasure trail round Camden (free)
Take an Autumn Amble with Walk London! Saturday and Sunday (free).
The Big Draw's Big Splash celebrates illustration for children and adults with an afternoon of activities and a guest appearance by Quentin Blake between 12-5pm at Kings Place (free).
Sunday: Go painting in Russia Dock Woodland with artist John Gustard between 10am-5pm (free but please book).
It's your last chance to have a go on the Lego greenhouse in Covent Garden before the London Design Festival ends.
Monday: Jester Jesters - Plagiarism Night encourages newcomers to comedy by insisting they perform someone else's material at the Plum Tree, Farringdon Street EC4 from 8pm (free entry).
Tuesday: Watch horror and sci-fi shorts at Westow House, SE19 as part of Crystal Palace International Film Festival (free).
Wednesday: It's French Film Night at the Jam Tree, Kensington with a screening at 9pm (free but you might have to fork out for un verre du vin).
Thursday: Strut your stuff at the last Tango @ Spitalfields of the summer. Complete beginners at 6.30pm, group dancing from 7-9pm (free).