You can find this type of information on the cruise lines website. But to get this information directly you should call the cruise line directly so that you make sure that you have the correct info.
Most cruise line cater to the elderly as well as to families. here is some good information and a place where you can find good deals on cruises for seniors; http://www.cruisesonly.com/
Many cruise lines offer great deals for seniors. It is important to shop around for the best rates. Some examples you can find online are www.cruisecheap.com/cruises/senior-discounts.html and www.vacationstogo.com/senior_discounts.cfm
Many cruise lines are adult only oriented, but its a little harder to find a seniors cruise line. Its important to thoroughly research any potential cruise lines. One helpful site is http://www.cruisecritic.com/cruisestyles/area.cfm?area=31
Most of the major cruise lines will offer some kind of discount to seniors. You can check them out or you can check with AARP, at ; http://www.aarp.org and see if they can help you in finding a discount.
www.vacationstogo.com this website has some cruise lines which give discounts to 55+ if you are 55 and older you may be lucky because this website offers great discount for seniors
When it comes to discounts on food, movies, and travel seniors do have an advantage in that area. Here is a site that has some travel info for seniors: www.onetravel.com/travel/senior-travel-deals.asp
One can find a few reliable Cruise Critic message boards. Some of the most reliable one's include 'Cruise Critic', 'Cruiseclues' and 'Cruise Critic UK'.
You can find local nursing home for seniors in most neighborhoods. You can find a directory of nursing homes in order to find locations closest to you at local-nursing-homes.com/.
You can find some real good Canadian cruise line agencies by visit the hotwire and priceline websites. You can also go online under cruise lines and find some good Canadian curise line agencies.
Seniors can find good rates through AARP. If one has a subscription, AAA can be a good source for medical and dental insurance as well.
Orbitz seems to have some of the more affordable tickets for seniors. Going through the checkout process, their was at least a 20% discount between seniors and other individuals.
You can find many different vacation spots and travel ideas for seniors on websites for seniors-oriented travel and vacation agencies. One such website is www.seniorcitizentravelinfo.com where you'll also find ideas for tours, tourist hot-spots, traveler's insurance, and senior's cruises.