Considering a Silversea cruise to the Med (normally cruise on Regent). We are traveling with some older family members who are frequent cruisers, but don't get around as well as they used to (happens to us all sooner or later). All the Silversea excursions seem to be 3 out 4 on the activity level. For those of you who have cruised Silversea, how strenuous is the 3 out 4 really? Also, this is a 2025 cruise, does Silversea tend to add excursions as we get closer to the sailing?
Thanks very much!