Perched on the hill as they are, many homeowners in Benicia have spended views of the Carquinez Straits, which connect the Sacramento-San Joaquin River Delta with San Pablo and San Francisco Bays. Note the substantial and steep hills that rise above both sides of the strait.
In the waters of the Suisun Bay, just east of Benicia, is largest naval fleet in the Pacific Ocean--the US National Defense Reserve Fleet. Many of these ships will never see service again, and likely are difficult to salvage due to an abundance of toxic materials in their construction. The engines of all are maintained though, and none are at risk of sinking even though the paint may appear chipped through a pair of binoculars. During the first Gulf War, two ships were called upon to transport troops and supplies to the Middle East. The Navy expects to decommission others for use by humanitarian organizations. Some of the ships are historic--a heroic tug boat from Pearl Harbor and the USS Pueblo--the spy ship once detained for a year by the North Koreans. There's more information in the SFGate article link below. Also, see Google map link for great satelite view. A great place to see the fleet is at a vista point off Hwy 680, between Benicia and Fairfield. Take the Lake Herman Road Exit. Don't stay here at night too long though, as Lake Herman road was also the scene of the first Zodiac serial murder. The Zodiac murderer has never been found.