If I'm not mistaken, it's the Clanking Festival, which is a representative event of Tottori's summer season, and the grand finale of which is called the Clanking Umbrella Dance (which would be the umbrella dance you're talking about).
The Medaka umbrella is made of thin strips of bamboo, and the surface of the umbrella is covered with washi paper, then painted with bright red and cyan designs, and decorated with strips of gold and silver paper. The central part of the umbrella bone has numerous bells attached to it, and when they are swung to the rhythm of the dance, they emit a clear ringing sound, which sounds like a shikon shikon, so the umbrellas are called medaka umbrellas, and the festival centered on the medaka umbrella dance is called the medaka festival.
This year's festival marked the 50th anniversary of the parachute dance by challenging the record of 1,461 parachute dancers set in Romania in 2011, with more than 1,600 participants. More than 1,600 people took part in the event and successfully challenged the Guinness Book of World Records for the "Largest Umbrella Dance". Become a new birth Guinness World Records.