You will be pleasantly surprised by the quality and variety of the excellent food. Please let me know if you have any special dietary requirements. People order and pay for their own lunches. I have found that home made soup and sandwiches are quite sufficient. No one has to walk if they don't want to but the tours are more fun if you can walk a little.
Age is no barrier.
I have had tour members aged for 8 to 84 and all have coped well. There are people to carry luggage and hands to help you off coaches and in and out of ferries. If there are places that you want to visit, then I will try to get you there. And you do not have to join the group for a half day, or a full day, if you want to have some time off. The weather is very variable.