What is tinsley island?

Tinsley Island is a small, privately owned island located in the Delta region of California, specifically in the San Joaquin River. It was named after Edward W. Tinsley, who bought the island in the early 1900s and built a club for yacht owners in 1929. Today, Tinsley Island is home to the Tinsley Island Club, a private club for yacht owners and their families. The island features several amenities, including a clubhouse, a swimming pool, tennis courts, and a marina. The club hosts several events throughout the year, including regattas and parties, and members can also rent out the island for private events. Tinsley Island is accessible only by boat and is located about 70 miles east of San Francisco.