This afternoon the baby went for a little ride on Flora around the backyard. (I was leading and holding on to her.) It was 97° with 23% humidity. After about 10 minutes Flora wanted to stop. I wanted to stop. The baby wanted to keep going.
We went for another five minutes and I told her we could ride more tomorrow.
We found her mother's old helmet and guess what? It fits her great. I always like to see riders with helmets on. I've gotten to the point where I don't feel right if I don't have my helmet on while I'm riding. And I've come off frequently enough in this last year that it's definitely worth it.
I know I did tell her we could ride again tomorrow, but it's supposed to be 103°. We'll just have to see about that ride.