There are some great senior travel clubs out there. To help find the one that interests you most check out www.sunstoneinteractive.com/.../senior.../single-senior-travel-clubs/.
Depending on the senior travel club that you would to join, contact them and see what benefits and special details are that they have for single senior travel. All companies will be different so be sure to contact them and find out their information.
There are several websites that can help you find travel for single seniors. Some of those are elderexpeditions.com, jetsetter.com, and suddenlysenior.com.
Your mother can start by researching online for senior travel clubs that cater to single seniors. Websites like Meetup.com, Seniortravelclubs.com, or AARP can be good resources. She can also inquire at her local senior center or travel agencies specialized in senior travel for recommendations.
A good avenue for senior travel is to get in on a tour group package or join a travel club. Seniorcitizenjournal.com will fill you in on some unique travel ideas. Check out seniortravehub.com to join a tour group.
You can find information on single senior cruises for your grandmother by seeking travel agents who specialize in senior vacation packages. Very few general travel agents or online booking sites offer this service.
There are senior travel clubs. You can even try to find one that have members that are local to your area so it would easier to stay in touch afterwards.
You can find many singe senior travel groups on the internet here is one (http://seniortravel.about.com/od/tourgroups/tp/Tours-for-Singles.htm) Senior travel is the one of the ones you come across plan your trip with them!
There are senior travel packages. Go to www.seniortravelhub.com/senior-travel-deals/travel-packages or www.tripspot.com/seniortravelfeature.htm to find these packages.
You can find information on senior travel insurance at http://www.moneysupermarket.com/travel-insurance/. Hopefully there you'll find what you are looking for
You can find out about travel tours for senior citizens. You can go to the Senior Citizen Journal at www.seniorcitizenjournal.com to learn about tours. You can find information at www.goodseniorliving.com/travels/senior-citizens-travel-tours.php.
One can find more information about senior travel on various places across the world wide web such as the Senior Living website and Senior Travel on About Dot Com.
Check out different travel agencies for information on senior travel. If you can't find the best information then contact a local senior home and ask them if there's any good information they can tell you about senior travel.