Is there a hot spring or spa nearby?
Yes, there are. Here are a few of them.

♦Matsuo River Hot Springs
19 minutes by car from the meeting place of Yoshino One-day rafting and Family rafting.
Located 17 minutes by car from the meeting place of Yoshino Half-day rafting.
You can enjoy the view of the forest at this hot spring.
2-1 Matsuo-Kurokawa, Ikeda-cho, Miyoshi-city, Tokushima
♦Awa no Sho
2 minutes drive from the meeting place of Yoshino One-day rafting and Family rafting.
12 minutes by car from the meeting place of Yoshino Half-day rafting.
The hot spring is located close to our meeting place.
165-6 Honna, Shirachi, Ikeda-cho, Miyoshi, Tokushima
♦Iya Onsen
33 minutes by car from the meeting place of Yoshino One-day rafting and Family rafting.
Located 31 minutes by car from the meeting place of Yoshino Half-day rafting.
Three of Japan’s best-kept secret hot springs with free-flowing hot-spring water, accessed by cable car.
367-28 Matsuo Matsumoto, Ikeda-cho, Miyoshi City, Tokushima
The hot springs after rafting are the best.

Ask your local guide for recommendations for hot springs as well!