Source：Sea protest, endorsed Aug.12th, 2026, by Southern Maritime Affairs Center, MPB.
1.A Crew Transfer Vessel with draft 2.4m grounded at 23°23'N、120°02'E, southern end water of Wan Shan Ding Zhou (Caisancho Island), with charted depth 9.9m. It refloated on the same day.
2.The site and its surrounding waters are significantly silted up, resulting in reduced water depth. All vessels are advised to avoid navigating this area to prevent the risk of running aground.