Yonder sits on Hookers Road in Walthamstow, a short walk from Blackhorse Road, and was built by climbers with a clear idea of what they wanted: a bouldering wall that is also somewhere you would happily spend the day. There is a yoga studio, a café, and a coworking space with its own membership.
At £10 for a single entry it is materially cheaper than anything comparable in central London, and the rolling monthly membership is similarly keen. Worth knowing that it closes earlier at weekends than most London walls.