Planning a vacation to Niki in Japan? This vacation planner will provide you with all the essential information you need. When planning a trip to Niki, make sure you visit its near-by prime city of Sapporo-shi. Add Sapporo-shi to your vacation plan, it has an interesting bunch of activities to do on your visit like Odori Park, Sapporo Underground Pedestrian Space, Clock Tower. A holiday in Niki can generally be of 1-2 days.