Changing seasons often means putting summer activities on ice. Fortunately, you can enjoy boating year-round, thanks to today's deal: Spend $35 (regularly $70) on two tickets for a two-hour harbor cruise from Boston Fun Cruises.

Head to Liberty Wharf and embark on a mini voyage around the Boston Harbor. Your 50-foot boat provides a beautiful, intimate setting to enjoy the sparkling water and scenic skyline. Board the Fall Foliage cruise and catch gorgeous views of New England's most brilliant season, or avoid jam-packed pubs on St. Patty's day and celebrate the luck of the Irish on the water. You can even redeem your deal for the spectacular New Year's Fireworks cruise. Here's to outdoor adventure -- and half-off savings.