Riverside is a long-running Irish-style pub on Rue Henri-Drussy between the château and the river — exposed beams, dark wood, Guinness on tap, and pub food at predictable prices. It draws a mix of locals and visitors and has live music on weekends, usually folk or rock cover bands.
The terrace is small but well-placed for evening sun. Drinks are reasonable and the kitchen does decent burgers and fish and chips if you want a break from French cooking. Open until the early hours on weekends, which is later than most places in town.