Blennerhassett Island 2025 Schedule. Blennerhassett island’s gorgeous palladian mansion and museum is visited by 40,000 people each year, making it one of the most popular travel destinations in west virginia. Step back in time as you explore the historic blennerhassett island, home to the elegant blennerhassett mansion.
Expect the city to be teeming with. Parkersburg — blennerhassett island opened for the 2023 season on may 2.