Inside Robert Kusmirowski's Bunker at the Curve, Barbican by suburbanslice. Last day: Sunday, open 11am-8pm. Free.
Tonight: Shutterbugs find like minded company at the Photosocial  meet up at The Photographers' Gallery. Heat up debating the following: 'Photography can never be site-specific!' from 6.30pm. Free, just turn up.
Saturday: Take advantage of a free tour of Wellcome Collection's Identity exhibition this morning between 11.30-noon. Back at the Photographers Gallery you can join a free tour of the current exhibition, Sara Ramo: Movable Planes at 3pm.
Sunday: Last chance to experience Robert Kusmirowki's eerie, hyperreal, disorienting and brilliant reconstruction of a World War II Bunker in the presently unrecognisable Curve at Barbican Arts Centre. Free, 11am-8pm.
In the Clore Ballroom at the Southbank Centre you can observe or participate in The West Side Story Experience, part 3. Starting at 11am, watch an advanced singing masterclass and hear the London Saxophone Choir in Concert with a final performance at 5pm. Part of the Bernstein Project. Free.
Fancy a stroll? Take a Bibulous Tour of Belgravia with a City of Westminster guide from 2pm. Just £5 gets you on this historical pub crawl (might need some extra quids for liquid refreshment) Look out for the pub which is linked to the disappearance of Lord Lucan in 1974, the remains of the original Pantechnicon and an exclusive dining club located in a converted church. Email firstname.lastname@example.org for more details and to book your place.
Monday: Stay home. Make something hearty for tea.
Tuesday: The Fate of Freedom will be discussed at the British Academy by a panel including Shami Chakrabarti, Director of Liberty alongside renowned academics. Just turn up, free from 6.30-8pm (first come, first seated).
Wednesday: Ever heard of Dagnum Moat? Us neither. So pull on your wellies and volunteer with BTCV for a day clearing the moat which sits on the edge of Epping Forest. Meet 9am at 80 York Way, Kings Cross. Keep 'em peeled for red deer and Ken's faves - Great Crested Newts.
What have we missed? Send us your cheap or free new year events listings to londonist at gmail dot com, leave a comment or tweet @londonist.