Free things to do in London this week.

Entertain the kids at a free Playday. Image: Coram's Fields

Walk The Line

A reminder that The Line — a walkable free art trail stretching between North Greenwich and Stratford — invites you to complete as much (or as little) of it as you fancy, admiring installations by the likes of Rasheed Araeen, Gary Hume, Abigail Fallis, Madge Gill and Yinka Ilori. What's more, every weekend throughout the summer, a cohort of friendly Youth Guides is scattered along the trail, happy to engage in a chat, and impart further insights into the artworks.

All summer.