Take a Thames night cruise and consider Patronuses shimmering across the water, protecting the metropolis with silvery
https://griffinccfs812.theglensecret.com/best-time-to-visit-platform-9-3-4-and-the-harry-potter-shop-at-king-s-cross
Take a Thames night cruise and think of Patronuses shimmering throughout the water, protecting the metropolis with silvery, protecting magic.