時間をつぶしてる時に、タオルやら軍手やらを手にした人たちがたくさん歩いてたので、なんだろうと思っていたら、こういうことだったようです。
地元の方たちが協力してやってるようですね。
初めて見たので、いい時に来ました。

While we were killing time, we saw a good number of people with towels or working gloves on their hand walking. Just as we were thinking what are they going to do, it was this. Seems like the locals are cooperating with them.

We came in at a good time because it was my first time seeing something like this.