The Kamakura Matsuri is a week-long festival held from the 2nd Sunday of April to welcome in spring. The festival has been held since 1959 and today includes traditional theatrical performances, tea ceremonies, and—the most popular event—horseback archery (流鏑馬, yabusame). The archery event is held at Tsurugaoka Hachimangu Shrine from 1pm on the final Sunday with the first arrows let loose at 2pm. If you want a good view it’s best to get there early.
Event details are taken from official sources whenever possible. It is always prudent to check the official event website before attending to make sure that there have not been any changes. If you know of an error in the calendar, then please let me know through the contact form.