SAN FRANCISCO -- If you've ever wanted to own a piece of San Francisco Bay, now's your chance. Red Rock, the only privately owned island in the bay, is up for sale.

A Bangkok gem dealer and attorney, David Glickman, wants ten million dollars for the 5.8 acre, uninhabited island in the shadow of the Richmond-San Rafael Bridge.

Glickman, who is 78, says he isn't going to live much longer and wants to leave his wife in good shape financially.

Red Rock Island, which gets its name from the reddish-brown color of its soil, was privately purchased in the 1920s. After a few owners, Glickman, then practicing law in San Francisco, bought it sight unseen in 1964 for $49,500.

It is about eight miles north of San Francisco's Fisherman's Wharf at a point where the San Francisco, Marin and Contra Costa counties converge.

Any new owner who wanted to develop the island would also have to spend extra money and go through an approval process involving state agencies in one or more of the three counties that have jurisdiction over the island.