Kupala Night, also known as Ivan Kupala Day, is a traditional Slavic holiday celebrated in several countries. The holiday falls on the night of June 23rd to 24th (Czechia, Poland and Slovakia), and it is also celebrated on July 6th (Belarus, Ukraine and Russia).
Kupala Night is a celebration of the summer solstice and is believed to have pagan roots. The holiday is associated with water, fire, and fertility, and many of its customs and rituals are centered around these themes.
One of the most popular traditions is the lighting of bonfires. People gather around the fires, singing and dancing until dawn. They also jump over the flames, which is believed to bring good luck and protect against evil spirits.
Another custom is the weaving of wreaths made from flowers and herbs. These wreaths are then thrown into rivers or lakes, and young women compete to see whose wreath will float the farthest. This is said to predict the future of their love lives.
Kupala Night is a unique and colorful celebration of Slavic culture, and it attracts many visitors from all over the world.
Edit, Mapuo added more:
What is the fern flower legend? It is said that whoever finds the fern flower on that day, will get the gift of eternal life, youth and wealth. It is said that the flower shines in the dark but can only be found on that particular night, and is usually well-hidden in a secluded location within the forest