"When did you know you were gay?" Harry asks some time later when they’re wandering the marina. It’s about an hour before embarkation and the docks are full of luxury yachts and smaller cruise liners. On one larger yacht, a group of young, fit, and tanned Muggles hang out on the roof, sunning themselves in barely-there bikinis, drinking from champagne flutes while bass-heavy pop music plays from the boat’s sound system.