Osaki

Osaki is a hollow, powerful right-hand reef break on a cape in Sagami Bay that responds best to southeasterly through southwesterly swell combined with offshore winds from the north-northeast. The wave develops its fullest expression in summer, particularly July, breaking into solid walls and barrels as swell climbs the sharp reef; at low tide, a particularly shallow mid-wave section creates an aggressive tube that claims many wipeouts. The break works across all tidal stages and paddle distances average ten to fifteen minutes from shore. Rarely crowded compared to other Shonan breaks, though localism reflects the area's historic significance.

The broader Shonan coast, including Zushi where Osaki sits, entered the global surf consciousness when U.S. servicemen from nearby Yokosuka began surfing in the 1960s, catalyzing Japanese surf culture in the region. Shonan became the foundational region for modern Japanese surfing from that era onward.

Access requires traveling to Kotsubo, Zushi on the Keihin Kyuko Bus line from Zushi Station (get off at Hiroyama Iriguchi), followed by a walk to the break. Parking is available at nearby Hiroyama Park rather than directly at the break itself.