I went to Hitsuji-yama Park in Chichibu city, Saitama Pref, about 1.5hours from the center of Tokyo Metropolitan city by train. Hitsuji stands for Sheep and Yama for mountain in Japanese. This park is famous not for number of sheeps but for beautiful different colors of moss phlox. When I visited, about 80% of flowers bloomed. And they will be in full bloom in a couple of days. You can enjoy these beatiful flowers by the 2nd week of May. If you have a chance and time, please visit not in the weekend but in the weekday. Why not in the weekend? Because you can only take photos of visitors.