Brewster, MA has the most extensive tidal flats in North America! In some areas, you can walk up to 2 miles from the shoreline. Popular spots to see the flats include Paine's Creek, Saint's Landing, Breakwater Beach, Ellis Landing, Linnell Landing, and Crosby Landing. We stayed in Brewster when we got engaged :)
Cape Cod has numerous spots to rent bikes (and e-bikes) and has 114 miles of bike paths. We have included a link to the bike paths with downloadable trail maps.
This is where we got engaged :)
The Island Queen Ferry runs from Falmouth to Martha's Vineyard. The ferry ride is ~35 minutes and there are sightseeing tours making for a great day trip!
Great breakfast option with both sweet and savory pastries!