Oyez, oyez! No less than three major gun salutes from the Tower of London this month: one for President Trump (June 3), one for the Queen's official birthday (June 8) and one for Prince Philip's real birthday (June 10). All 1 pm.

Built environment: London Festival of Architecture takes place across the city, loads of talks, tours and openings (June 1 to 30)

Float your boat: Movies on the River w/ City Cruises and Time Out, Tower Millennium Pier, tickets from £29 (June 4 to 27)

La la lahs: arias in one of London's prettiest green spaces with Opera Holland Park, June 4 to August 9, non-members £63-88, lots of deals for under-18s and over-65s.

Night life: Zoo Nights are back at ZSL London - London Zoo to you or me - with tours, talks and crazy golf (honestly). Adults £19.95 (Fridays June 7 to July 26)

Eyes down: World Naked Bike Ride in the afternoon, for those who do or don't want to be there (June 8)

Dig these: London's private green spaces revealed on one special weekend for Open Garden Squares Weekend. Various venues, weekend tickets £20 adults, £10 12-18s (June 8 and 9)

Big art: yup, the world's biggest open submission art show, the Royal Academy Summer Exhibition, opens June 10 with around 1,000 works of art - big, small, famous, unknown - for show and for sale (June 10 to Aug 12)

Archbishop's hotline: the biggest city-centre zipwire in the world opens in Archbishop's Park, Lambeth SE1, 225m length, 30m up in the air, one ride £30, early bird discounts available (June 12 to Sept 15)

Popup classics: movies from 'Some Like It Hot' to 'Bladerunner: The Final Cut' from moving cinema Nomad arrives at Citypoint EC2, next to the Barbican (June 18 to July 19)

Yum yum NW1: Taste of London festival dishes it up at Regent's Park with restaurants, chefs, food trails and demos, from £23 for an entry pass (June 19 to 23)

Eggcellent work: the Free Range show at Truman Brewery, E1, shows graduate photography and fine art work (June 21 to July 8)

Out there: outdoor theatre and performing arts at various venues for the Greenwich + Docklands International Festival, opera, dance, acrobats...and it's FREE! (June 21 to July 6)

All night art: the annual Art Night in Walthamstow + Kings Cross is even bigger this year because Walthamstow is London's first Borough of Culture. Will be FUN. Oh, and free (June 22)

Anything but square: Trafalgar Square hosts stars from the big shows strutting their stuff for real at West End Live (June 22 & 23)

Royal collection: the fine and decorative arts show Masterpiece opens at the Royal Hospital Chelsea, connecting collectors and creatives and putting on an all-round jolly good show. One-day general admission £38.50 (June 27 to July 3)