Discover Seal Harbor. Situated at the ocean's edge in Winthrop, MA, the Seal Harbor condominium community is located just fifteen minutes from Boston's financial district. The buildings are amenity-rich, offering 24/7 concierge, on-site management, secure underground garage parking, a heated outdoor pool with shower, bathrooms, full poolhouse kitchen, an outdoor Jacuzzi, and two gas grills. Residents also enjoy year-round access to an indoor pool on the 9th floor, complete with dramatic views, a full fitness center, as well as an indoor Jacuzzi and sauna with a large deck... perfect for viewing Independence Day fireworks! Seal Harbor Three boasts three separate function rooms, where guests are able to enjoy table tennis, billiards and television. And in addition to the mature grounds, owners also have access to tennis courts, private basement storage, bicycle storage, water sports storage and a full recycling facility. This home has one underground garage parking spots.