For the budding craft-workers in your family, the respected Haystack Mountain School of Crafts ) is an easy drive away.
Deer Isle's year round populace includes a large number of artists, whose works are available for viewing (and purchase) in many galleries located around the islands. You can get a good idea of the number of galleries by looking at the Deer Isle - Stonington Chamber of Commerce listings for galleries. To see it, click here.
For nature lovers, and those in need of breath taking views from rocky cliffs, a ferry ride (about three-quarters of an hour) from Stonington to the Isle au Haut may be just the ticket. Whale watching and fishing trips are also easily obtainable, and can be quite good fun.
For those interested in golf or tennis, the Deer Isle Country Club (348-2379) is also fairly closeby.
There are two museums of note here, the first being the Salome Sellers House, a restored and furnished house built in the 1830's, and the neighboring Museum of the Deer Isle-Stonington Historical Society. The second is the Deer Isle Granite Museum, which details the granite quarrying process a hundred years ago, with a large, working model of the operation then.
There's plenty more to do and see (and of course, eating lobster is a must) and in the future we will add as much more detail as is feasible (namely more phone numbers). The Deer-Isle Stonington Chamber of Commerce maintains a useful calendar of the special events that take place over the course of the summer, such as boat races and parades.