Rafthing of Tone river

Once, I posted the article about rafting of Tone river on June. Yes, I got the email of the schedule this morning. Schedule? I will have to go to Tokyo station until 9:00 am. Then we will go to the Tone river with the bus. According to the email, we will arrive at the Tone river at 11 am. After eating lunch, we will start doing rafting at 13 pm and then we will enjoy doing rafting until 16 pm!! Sounds nice!! After rafting, we will go to the hot spring 'Onsen' for 1 hours. But I am afraid that it is rainy season in Japan now. Last week, it had been rain. So I looked at the weather news a few mins ago. Oh, my god!! Yes, according to the news, it may be rain on Sun when I will go to Tone river. I hope that it will be clear on Sun!!