Take a Thames evening cruise and think 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 evening cruise and think about Patronuses shimmering throughout the water, defending the city with silvery, defensive magic.