I'd start my perfect day with a bowl of muesli, eaten in my swimming costume, ready for a gentle swim at the Golden Lane leisure centre, a small, quiet pool near the Barbican . Next I'd walk up City Road to two art galleries: the Parasol Unit (parasol-unit.org) and Victoria Miro, (victoria-miro.com) both in beautifully converted old buildings on Wharf Road. I really like the architecture around here – the exterior of Trevor Horne Architects (trevorhorne.com) round the corner on Micawber Street is my idea of heaven in a building. With its huge gabled roof, this would be the blueprint for my own house and studio.
Still eager to see more contemporary art, I'd wander back down to Iniva (iniva.org) the Institute for International Visual Arts), a culturally diverse organisation on Rivington Place which is also an education and research centre. Its exhibitions are thoughtful reminders that quietness and excitement are perfectly compatible. It would be tempting to spend a few hours in its library, too, but I'd probably be hungry by now. I'd walk through leafy Bunhill Fields, the former dissenters' burial ground, passing William Blake's grave, to Carnevale (020 7250 3452, carnevalerestaurant.co.uk). This quiet vegetarian restaurant and deli has a small patio room at the rear and I'd invite a friend to join me for tabouleh and roasted red peppers.
Afterwards, I'd try out an awareness through movement class at the nearby Open Centre (opencentre.com) on Old Street then follow my gentle exertions with a leisurely browse in the fascinating BookArtBookshop (bookartbookshop.com), 10 minutes' walk away on Pitfield Street. It's one of the best places to find limited edition artists' books in London.
My perfect day wouldn't be complete without doing some drawing, however, so I'd quickly walk back down Old St to the Prince's Drawing School, for a life drawing class (princesdrawingschool.org). In addition to drop-in classes, which start from ?16 (?5 for young people), this is also a good place to see perceptive, intelligent drawing by current students. After doing a few charcoal sketches I'd treat my husband to a meal at the urbane Searcy's Restaurant in the Barbican (020 7101 0220, searcys.co.uk/barbican-centre). Together we'd watch the sun set over the peaceful, inner city lake.
• Siobhan Wall is an artist and author of Quiet London (Frances Lincoln, ?9.99), a guide to London's more peaceful side. To buy a copy for ?7.49 go to guardianbookshop.co.uk