Skint? On a budget? Looking for cheap things to do in London? We hear you, which is why we've put together this list of things happening in London this week that cost £5 or less. You're welcome.
All week
APPEARING ROOMS: Southbank Centre's Appearing Rooms are back. The fountain uses jets of water to create rooms that appear and disappear at speed — you might want to bring a spare change of clothes. Free, just turn up, every day except Monday 10am-8pm
ASTRONOMY PHOTOS: The Insight Astronomy Photographer of the Year exhibition at The Royal Observatory has been extended until 7 August. We were pretty impressed by this year's photos and reckon it's well worth a visit. Free, just turn up, until 7 August
TATE MODERN: The extension to the Tate Modern is now open, and the permanent collections are free to visit. We had a sneak preview and we liked what we saw.
LONDON BRIDGE CITY FESTIVAL: Summer may not be all that we'd hoped for (yet!) but that's not stopping the Summer Festival going ahead down at The Scoop by More London. The programme is full of free film and sport screenings, theatre performances and more. Free, just turn up, until October
HARRY POTTER: You may not have tickets for the play, but you can still get your Harry Potter fix in London at this free Potter exhibition. See Hogwarts textbooks, issues of The Daily Prophet and the original Marauder's Map. Free, just turn up, until February 2017
Monday 20 June
MARILYN MONROE: Today's the final day of this free exhibition of Marilyn Monroe memorabilia, including her personal letters and dresses worn by the actress. Free, just turn up, 10am-7pm
CANALETTO'S LONDON: Head to the Museum of London for a free Gresham College lecture about painter Canaletto, the work he did in London and how it's shaped our perception of that era. Free, just turn up, 1pm-2pm
Tuesday 21 June
KENSINGTON GARDENS TEAM: Find out what goes into maintaining a Royal Park — the Kensington Gardens team will be answering questions from the public near the Marlborough Gate Cafe. Free, just turn up, 12pm-2pm
JACQUELINE WILSON: Those who were raised on a literary diet of Jaqueline Wilson books will want to get themselves to Waterstones Piccadilly tonight. The International Board on Books for Young People holds its AGM, which is open to everyone. As part of the event, Jacqueline Wilson will be talking about her work. £3.50, book in advance, 6.45pm
COMEDY: Bridget Christie, Jonny and the Baptists, Suzy Wilde and Brydie Lee-Kennedy join Chris Coltrane at Camden's Black Heart for friendly political comedy night, Lolitics. £3, just turn up, 8pm
Wednesday 22 June
PROJECT AWESOME: Get a 'power boost of positivity' at Project Awesome's fitness movement at The Scoop, More London. Expect dazzling views of the city as you catch it at its best time. Free, book in advance, 6.30am
LEGO ROBOTS: Yep, you read that right. Lego. Robots. Get yourself to Drink Shop & Do in King's Cross to build a bot from the plastic bricks, give it a name and enter it into a competition. Free when you buy a drink, just turn up, from 7pm
Thursday 23 June
RENT CEREMONY: The annual Rent Ceremony in Covent Garden sees a Town Crier and jazz band march around the square to pay a yearly rent of one apple and a posy of flowers. We've explained it all here, but if you're in the area, why not drop by and watch? Free, just turn up, 4.30pm
DJ PARTY: Head to Queen of Hoxton to kick the weekend off early with Our Party. DJs Natalie and Laura play pop, electro-funk, disco and rhythm & blues tunes. Free entry, just turn up, 8pm-2am
VOTE: If you're eligible to vote and registered, don't forget to cast your ballot in the EU referendum. Polls are open 7am-10pm
Friday 24 June
PROJECT AWESOME: See great views of the city on your workout with Project Awesome at Primrose Hill with this friendly fitness class. Free, just turn up, 6.30am
ISABELLA PLANTATION: Join the gardeners for a guided stroll around the Isabella Plantation in Richmond Park, an ornamental woodland garden with exotic plants. Free, just turn up, 11am
PADDINGTON COVERS: No ticket to Glastonbury? No problem. Soak up the best of the festival — minus the mud, hopefully — at Norfolk Square Gardens in Paddington. The fun kicks off at lunchtime with an Adele tribute act and continues until 7pm, with Rihanna and Coldplay tribute acts, plus a plethora of food stalls, face painting and more. Free entry, 12pm-7pm
COURTYARD LATES: Burlington House on Piccadilly holds Courtyard Lates, with the six surrounding societies (including Geological Society and Royal Astronomical Society) offering an insight into what they do. Free (fee for some activities), 6pm-9pm
SICILY: Head to the British Museum for a lecture by Dr Michael Scott about how the communities of ancient Sicily were represented over the centuries in writing and in stone. Ties in with the current Sicily: Culture and Conquest exhibition. £5, book in advance, 6.30pm-7.30pm
Saturday 25 June
OPEN STUDIOS: Eel Pie Island in Twickenham is a private island, home to a group of artist studios. A couple of times a year — including this weekend — the studios open to the public. Free entry, just turn up, 25-26 June
PRIMROSE HILL HISTORY: Discover the history of Camden and Primrose Hill on this guided walk, taking in the markets, canal towpaths and more. Hear stories about past residents including Charles Dickens, Sylvia Plath and Amy Winehouse. Free, book in advance, 9.30am-11am
YOGA: Yoga teacher Anna Karides leads a free yoga class in Hyde Park, courtesy of fitness brand lululemon. Free, book in advance, 10am-11am
FESTIVAL OF STUFF: UCL's Festival of Stuff takes place at the Institute of Making, with the focus very much on materials. Test out a 3D printed violin, make a whistle or watch clog makers at work. Free, just turn up, 1pm-5pm
CIRCUS PERFORMANCE: Families are invited to an interactive and immersive theatre performance at Finsbury Library, where acrobatics and storytelling meet, in a soft play area designed like a child's bedroom. Free, book in advance, 2pm-3.10pm
Sunday 26 June
DAY OF WALKING: Starting at Newington Green, this full day of walking visits Clissold Park, Woodberry Wetlands and the Parkland Walk to Alexandra Palace, discovering a wealth of bird and plant life. Bring a packed lunch. Free, just turn up, 11am-4pm
CANAL FESTIVAL: The Friends of Regent's Canal host the East End Canal Festival at the Art Pavilion in Mile End Park. Expect boat trips, canal history walks, story telling, face painting, pond dipping and more. Free, just turn up, 11am-5pm
OPEN TOWER: Hackney's oldest building, St Augustine's Tower, is open to the public once a month, and today's that day. Free, just turn up, 2pm-4.30pm
VOLLEYBALL PICNIC: London International Society brings people from all over the world together for a relaxing Sunday afternoon of volleyball in Kensington Gardens. Meet people from other countries and cultures, practice speaking languages and generally have a good time. Free (£2 charge to play volleyball), book in advance, 2pm-5pm
POETRY READING: Daphne Gloag and Carol DeVaugn are tonight's poets performing readings at the Torriano Poets Meeting House in Kentish Town. Readings from the floor also welcome. £5/£4, just turn up, 7.30pm
