Long Island Jewish Holidays and Festivals Celebrations and Services. Find out what is happening at Long Island Jewish temples, Long Island synagogues, Jewish religious organizations and Jewish cultural centers may it be Orthodox, Conservative, Reform or Reconstructionist celebrating Sukkot, Shemini Atzeret and Simha Torah, Hanukkah, Tu B'shevat, Purim, Passover, Yom HaShoah, Yom Hazikaron, Yom Ha'atzma'ut, Lag B'Omer, Shavuot, Tish'a B'Av, Rosh Hashanah, Yom Kippur. Jewish Holidays celebration events guide in Nassau County, Suffolk County on Long Island New York. The Festival of Lights: Families light candles for eight nights during Hanukkah, the Festival of Lights, commemorating Judah Maccabees triumph over the Syrians in 165 BCE and the rededication of the violated Temple. Many families give children gifts at candle-lighting on each of the eight nights.