1. Dotonbori
Dotonbori is Osaka at maximum volume. This canal-side entertainment strip, named after merchant Yasui Doton who financed its construction in the 1600s, is a wall of neon signs, giant mechanical crabs, and the famous Glico Running Man billboard. It runs along both sides of the Dotonbori Canal in the Minami district, and it is free to walk, open 24 hours, and impossible to miss. This is the must-see in Osaka that everyone photographs. The real draw is the food. Takoyaki (octopus balls), okonomiyaki (savory pancakes), kushikatsu (deep-fried skewers), and gyoza stalls line every block. Most portions cost between 500 and 1,000 JPY, so you can eat well without sitting down once. The atmosphere peaks after dark, when the neon reflects off the canal water and the crowds thicken. It gets loud and packed, especially on weekends. If that sounds overwhelming, duck into nearby Hozenji Yokocho for a completely different mood. Dotonbori is less than a 10-minute walk from Namba Station. You can combine it with Kuromon Ichiba Market in the morning and then graze your way through Dotonbori in the evening. For things to do in Osaka on your first night, this is where you start.