i’m guessing the issue was that You need water PRESSURE. Something to pump the water from the ocean to the fire.
Yes, you need pressure. Set up a wind turbine and use the power from the turbine to support a pressure pump. With the high winds that should have been easy to do.
When I worked for Calif Div of Forestry back in my firefighter days, we had 3 fire trucks at our station that pumped water from Lakes/streams/swimming pools to hose nozzle.
As long as the water source had water, we could pump until dry.