London is smaller than you think. From Covent Garden to the Tower of London? 35 minutes walking. From Oxford Street to Hyde Park? 12 minutes. Most tourists blow £7 on a Tube ride that takes two minutes. Walk it. You’ll pass a guy playing a harp on the street, smell fresh croissants, and avoid the Tube’s delightful “mystery puddle” on the floor.
Download a free walking app (like London Walking Tours), and you’ve got a guide in your pocket for zero pounds. Add a free walking tour (actual humans, tip-based, £5 if you’re generous), and you learn history while saving cash. Just tip something; those guides work for the love of history and leftover pastries.