Usually, I ride my bike alone along coast line without up-down. So, this riding was very hard for me because it included many slopes in very hot weather. The distance was about 100Km. We started at 8AM and came back at 4PM.(Of course, it includes several rest.)
I managed to keep up with them at the end all time. But, this was good experience that tell me a joy of group riding. And "mini-puffet"（ミニパフェ） ,"Ringo-curry"（りんごカレー） that I ate at a farmer's restaurant were very delicious.