West Bay, as it is known today, began its formation about 5,500 years ago when Galveston Island was shaped following the rise in the sea level. At the time, West Bay was situated just north of the mouth of the
Brazos River, which formed a delta at what is now
San Luis Pass. Three thousand years later, the river diverted south to its present location at
Surfside Beach. The bay's current formation was complete by about 1,200 years ago. The main settlements on the bay include
Tiki Island located at the mainland base of the
Galveston Causeway, and
Jamaica Beach on Galveston Island, just south of
Galveston Island State Park. Jamaica Beach, a resort with a population of about 1,075 was found in 1957 on the site of a former
Karankawa Indian burial ground. Across the bay from Jamaica Beach is Tiki Island, an affluent village of 1,016 people, that was established in the 1960s and incorporated in 1982. ==Features==