Mount Washington Cruises offers Scenic Daytime and Sunset Dinner Dance Cruises on Lake Winnipesaukee, NH from late May through October. The M/S Mount Washington visits 5 ports on Lake Winnipesaukee and takes on passengers in Wolfeboro, Meredith, Center Harbor and Alton Bay on alternating days of the week with daily cruises from Weirs Beach. Sunday Champagne Brunch Cruises from Weirs Beach and Alton Bay every Sunday. The US Mailboat, Sophie C. offers Island Cruises while delivering mail to the islands on Lake Winnipesaukee, the largest and most beautiful lake in New Hampshire. It is located at the foothills of the White Mountains in New Hampshire's beautiful Lakes Region. Lake Winnipesaukee is spring fed and surrounded by mountain ranges, contains more than 240 habitable islands and covers 44000 acres of crystal clear water.