Kirihama Fishing Port is a small fishing port where Kirihama Swimming Beach is located.
There is a parking area and public toilet amenity on the north side, and a small jetty beyond.
The jetty bulges outward slightly and there are tetrapods in the vicinity, so fishing, except for casting, would probably not be very productive.
You can catch Japanese whiting and Pleuronectidae by casting a line.
If there are rocks in the sea, you could try catching big-fin reef squid with a bait log.