I'm not a big surfer, but I've never heard of Japan being a great surf spot. I guess it shouldn't have been a surprise that there is surfing here in Shikoku with all the tsunamis and typhoons that hit the south-eastern shore of the island.
A surfer crosses the highway to get from the town to the beach
Surfers enjoy themselves on the rivermouth swells, in front of a wall of concrete tetrapods
At first I thought these concrete blocks were a form of tsunami countermeasures, but then I read that these giant tiddlywink-shaped concrete blocks are called "Tetrapods". They're piled up on the beach to prevent erosion of the sand by the pounding waves. It's a very artificial design, not found in nature, its special shape forces the water to flow around them, dissipating the wave impact and preserving the sands beneath them from washing out into the ocean.