To celebrate 20 years in the bussiness, Jewish Tours of Shanghai's offering 20% off their tours in April and May. It's a half-day thing running for 4-5 hours, starting at 9.30am daily, and costs 450rmb (20% off is 360rmb). Led by historian Dvir Bar-Gal, the tour spans from The Bund to Little Vienna, to the Shanghai Ghetto and covers decades of history. To book email Shanghaijews@hotmail.com.