Yokohama (Minato Mirai, Cup Noodles Museum, Chinatown)

Yokohama provides Tokyo's most convenient day-trip, just 30 minutes from Shinjuku, blending Japan's largest Chinatown (free entry, pork buns at 500 JPY), the Minato Mirai waterfront, and the Cup Noodles Museum (500 JPY). The Cosmo World amusement park offers free entry with rides from 700 JPY, 20% cheaper than Legoland Japan's per-ride cost. The Landmark Tower Sky Garden costs 1,000 JPY for city views. TripAdvisor data rates the Cup Noodles Museum as one of Japan's best interactive experiences for children, with near-universal praise for the DIY noodle workshop. Hakkeijima Sea Paradise adds an aquarium (2,700 JPY) and rides, making this a richer urban alternative to #9 Nagoya.