Thousands of people in Jerusalem witnessed a joyous full-dress reenactment of the water libation ceremony that was held during the last six days of Sukkoth in the Temple.
Though not explicitly mandated in the Torah, the water libation is part of the oral tradition passed down from Moses. Sukkot is a joyous holiday and the water libation was the focal point of this joy. In the Temple, the ceremony would take fifteen hours with accompanying celebrations lasting all night until the Temple service began again the next morning. Nations came from around the world to take part in the Sukkoth celebrations making it international worship of God.
Source: Redemption Mile-Marker: Record-Breaking Crowd at Reenactment of Temple Libation Ceremony [WATCH] – Breaking Israel News | Latest News. Biblical Perspective.