Wickets Island Tour This tour will take you on a spectacular tour of coastal Onset Bay into Broad and Muddy Coves, then onto Wickets Island a 4.6 acres island located in Onset Harbor in Wareham, Massachusetts. Local boaters and paddlers know Wickets Island as one of the best places to stop off during on-the-water exploration around Onset Bay. Wickets Island especially unique is its unusually high top, set atop 40-foot cliffs. The shores of Wickets Island are a great place to look for shellfish, from crabs and quahogs to tiny periwinkles. Offshore, Onset Bay’s waters are rich in wildlife and beauty.