Gateway to the sea Hyannis Harbor is frequently called to Gateway to the Sea. A bit of hyperbole perhaps since there are lots of other ways to get to the sea on Cape Cod but there is no mistaking that Hyannis does indeed have a nice harbor. One of the nicest area along the harbor is a little park named after Michael Aselton, a police officer that died in the line of duty in 1983. The park was officially dedicated in 1996 and includes a few walking trails, benches and of course some view lovely views. The park is located right next to the Hyannis Maritime Museum and the one and a half mile long Hyannis Kennedy Legacy Trail runs right through the park. A nice park in a very nice place dedicated and named after someone who sacrificed all in the line of duty.