The Arnold Arboretum at Harvard is one of the finest in the world.
The Massachusetts Audubon Society's Boston Nature Center has opened on the grounds of the old Boston State Hospital.
It helps, of course, that the city has a fairly compact center loaded with date-friendly diversions — indoors and out — to suit most tastes.
You could roam the hot spots of a town for months without meeting that special someone, then find a soul mate in a chance encounter at the post office. Meet new people and find love with help from AARP Dating.In the 1960s and '70s, San Francisco achieved mythical status as the land of free love.Fast-forward 40 years: Social mores have changed, but San Francisco still reigns as a bastion of active dating across all demographics.Baltimore doesn't make a lot of top 10 lists, overshadowed as it is by the powerhouses of the Northeast Corridor.But once you experience the easy pace, historic neighborhoods and waterfront establishments, you'll get Baltimore's nickname: Charm City.We also kept an eye on health care resources and costs (although in some cases — notably San Francisco and New York — the sheer single-friendliness of the city trumped its admittedly steep cost of living).Read on (the 10 cities are in no particular order), and let us know from your experience what other cities and towns are particularly single-friendly, and why.Still, some cities are better than others for older singles, especially those who are seeking some place to retire.We plied the country to find 10 great cities in which to retire for older singles, focusing primarily on places with convivial locals, a solid percentage of AARP-age residents and, of course, a lot of things to do — either solo or with a date.The job market is holding up better than it is in most cities, and foreclosures are much less of a problem than they are elsewhere in California.Maybe it is the mix of nature's wonders and cosmopolitan allure that sparks romance: Whether you are strolling the wharfs, huffing up one of the city's vertiginous hills, sampling sushi in the Noe Valley neighborhood or cycling across the Golden Gate Bridge, San Francisco seems to shine — at least when it's not blanketed in fog.