Take your shoes off and relax under the palms as you soak up the view of Shadorvan Bridge from the airy courtyard dining platforms of this restored Qajar house. It's definitely the nicest eating experience in Shushtar. Enter from the last alley heading north before the bridge.
There's also a small tourist-information office with useful brochures and maps, and a small museum in the shabestun (traditional Khuzestani subterranean room).