The Great Island Garden Club invites you to join New Castle's 400th anniversary celebrations with a self-guided walking tour of some of the most beautiful home gardens in the town's Historic District. This is a unique opportunity to stroll our charming streets and take in the variety of landscapes that flourish on this scenic island. During the tour, take a moment to learn more about our town’s history with a visit to the New Castle Historical Museum and the New Castle Congregational Church historic sanctuary.