Looking for fun restaurant and activity for cousins 12-16years old.
Here above is the list of everything. Does it mention biking along the CC Canal and going to the Visitors Center there?
The kids might enjoy watching the glass blower at Pairpoint. On Fridays there is added fun for kids at the Heritage Gardens. They can join others jumping off the boardwalk into the marsh.....though actually this is not allowed, it happens. Kayaking, sup, take a cruise through the canal, fishing. Well just choose from the list inside the link. Also you are not too far from the ferry to Martha's Vineyard out of Woods Hole or Falmouth. If you go plan to spend time in Oak Bluffs.
Heritage Gardens has an Adventure Park with zip lines and climbing features. https://heritageadventurepark.org/
The beaches in Sandwich are very rocky and water shoes are a definite if you go.A better beach is Scussett across the bridge at the end of the canal.
Bike the canal. They do not have rentals at the canal but there are places close by if you don't have bikes.
Canal Cruise out of Onset.
There is an antique cars museum at Heritage Gardens.