Why does Alaska, Kodiak Island have 4 tides in 24 hours?

Answer 1

Is it possible you misinterpreted that?

"The Pasagshak River supports runs of king and silver salmon. The river is relatively short, and is unusual in that it reverses its flow four times daily with the ebb and flow of the tides."

Answer 2

High tide, low tide, high tide, low tide
That's four, just like every other ocean shore line in the world.

Don't feel bad - the way we discuss tides is often ambiguous.