Search teams from several agencies launched boats near the Dumbarton Bridge when the tide was high enough Wednesday morning. They searched a wide area before low tide forced them to stop.
RELATED: Search intensifies for missing kayaker near Dumbarton Bridge
Trouble began when Kenneth Maldonado's kayak started taking on water Tuesday. The 32-year-old then disappeared while a friend was towing him back to shore. "It was very cold last night, so if he had gotten himself out of the water up on one of the levees, there's still a chance," Fremont Fire Dept. Div. Chief Diane Hendry said.
RELATED: Crews search for missing kayaker near Dumbarton Bridge
Fremont firefighters also used drones to search areas that are hard to reach by boat.