London in 3 Days — The Essential Itinerary

The Three Days

Day 1 — Royal & Westminster: start at Buckingham Palace for Changing the Guard (11am on scheduled days), through St James's Park to Westminster Abbey and Big Ben, cross to the South Bank for the London Eye, then walk the river to Borough Market for dinner. Day 2 — City & Tower: St Paul's Cathedral, walk the Millennium Bridge, the Tower of London (Crown Jewels — go at opening), Tower Bridge, then east or back west for evening. Day 3 — Museums & Shopping: the British Museum (Rosetta Stone, mummies), then Kensington — the Natural History Museum or V&A — and finish at Harrods and Hyde Park. Evening: a West End show to close.

The 4th-Day Extension & The Pacing Truth

If you have a fourth day, the best use is OUT of London: a day trip the trains do badly — Windsor Castle + Eton, or the Cotswolds villages, or the Warner Bros Harry Potter Studios (book ahead), or Stonehenge + Bath. This is exactly where a private car transforms the day, since these are the places public transport fails. The pacing truth for 3 days: resist cramming a fourth 'must-see' into each day — London rewards depth over checklist speed, and jet-lagged first days especially need slack. Two properly-seen sights beat five glimpsed. Arrival and departure days are half-days once flights and transfers are counted — plan accordingly, and let the airport pick-up remove the stressful bookends. 微信、WhatsApp預約，微信收款。