Guides were excellent and attentive to our safety. Paddlers of single seat kayaks had sleek, light and fast models. the four Seniors in two tandem seat kayaks had tubby, heavy and slow models which will be replaced soon,the guides said. Thatcher Isl has the only twin lighthouses in the h US, the island is a bird sanctuary run by the National Park Service; the sea birds are fearless around humans,the view from atop the South lighthouse of the Cape Ann coast is wonderful. A safe trip in good weather.