go to Khaju bridge it is a very famose bridge.It has two levels of terraces overlooking the water. On a Friday evening, the bridge is crowded with young Esfahani’s having fun.below it there are couple of teahouses ;there u can eat , drink and smoke ghelion ( shisha,or known as hookah “remember Alice in wonderland”).the place is decorated w antique pieces .what ever you could think of ,it’s there.