Where you travel depends on your abilities and what you want to do. There are special travel plans for seniors with different activity levels and needs, and talking to a travel agent may help you find one that's right for you. There's also information available here on different options: www.suddenlysenior.com/TRAVELPAGE.html
Orbitz is a good website to book online travel for seniors. They also have good discount rates.
Yes there are, there are probably dozens of different travel insurances for seniors. A place you can look for them is http://www.allaboardbenefits.com/senior-citizen-travel-insurance.htm
Single seniors who like to travel now that they are retired and who want the company of other seniors for safety and social reasons can try looking at seniortravel.com for many ideas.
There are several websites that gives off good travel packages in general. This website, www.seniortravelhub.com/senior-travel-deals/travel-packages, is geared specifically towards seniors.
The main place for travel insurance for the elderly would be AARP which is well know for providing seniors with much help. Other insurance companies offer good deals for travel insurance.
Most insurance companies offer travel insurance. It's illegal to decline travel insurance base on age. A good place to look is a travel agency or AAA. Traveler's insurance is also a good one.
There are many places that offer last minute travel deals, not just for seniors but for everyone. One such place can be found here: http://www.lastminutetravel.com/
Many hotels offer discounted rates for seniors. But if you want to find discounts in one place aarp.com offers discounts for their members in one place.
A great place to find senior discounts and get other travel tips for seniors is www.independenttraveler.com. By going to one trusted site, you can compare prices on the flights most convenient for you.
Insure for All offers a good amount of insurance for seniors 65 and older. Also, this company is created just for seniors who specialize in traveling. For more information you can see their site at www.insureforall.com.
Travel insurance is a good idea for anyone. There are many places that provide travel insurance for seniors. One such place can be found here: http://travelinsuranceforseniors.org/travel-insurance-over-70
Expedia offers wonderful travel advice. Some of their specials cater specifically to senior travelers. This is helpful as seniors do not like to search for these offers, having them in one place is good.