My parents (77 years old) are interested in visiting Europe (this time they are looking at England, Scotland or perhaps a river cruise) this spring, but I'm wondering which companies cater more towards seniors or individuals with more limited mobility? They are still very healthy and somewhat active, but are obviously somewhat limited.
Any assistance in terms of which companies - Globus, Gate One, etc. would cater more towards this demographic, and if small group is better to be more accommodating and slower pace.
Thank you!