My 78 year old father has spinal stenosis and really bad arthritis throughout his body and he rode it with us the last time we were there. He was fine with it, but it was my first time riding it...Had I known what it was REALLY going to be like, I wouldn't have recommended he go on it with us.
So, you'll probably survive it, but it's not worth taking a chance ruining your vacation over, in my one-time-riding opinion!