Taierzhuang to Weishan cruise. Terzhuang Lock. Lu Ruizen family play with the grand daughter awaiting their turn to enter the lock. Lu Ruizhen, (48), son, Lu Zheng(21), daughter in law Wang Li(20), and their 8month daughter, Lu Zhi Han in their living room aboard their 3 yr old barge heading to Jining with a load of sand. Kids live on board till school age.