A participant wearing ethnic costume performs during a show, as part of the Ivan Kupala celebrations at the Berezovaya Roshcha (Birch Grove) park, in Zelenodolsk, Republic of Tatarstan, Russia. Ivan Kupala Day, also known as Ivana-Kupala or Kupala Night, is a traditional pagan holiday celebrated in eastern Slavic cultures. Various rituals are traditionally performed on Kupala Night, including making flower wreaths, fortune-telling, jumping over bonfires, and burning a wheel-like effigy symbolizing the sun.