Supji Koji

Supji Koji is a small island location situated in a sheltered bay off South Korea's southern coast. The island features developed infrastructure on its northern side with substantial protected areas, while exposed rocky coastlines dominate the southern and eastern shores. The bay configuration provides natural wind channeling and protection from extreme ocean swells, though this results in the rough-chop conditions typical of enclosed water bodies. With average waves under 1 meter and moderate wind reliability at 53.7%, this spot functions best during seasonal wind events. The 13.1-knot average wind speed is marginal, requiring optimal conditions for consistent riding. North winds are most favorable given the western coastline orientation, providing side-shore conditions. The rocky substrate and shallow approach areas demand intermediate-level boat handling and local knowledge. Limited fetch distance restricts wave development. This spot suits intermediate riders seeking sheltered conditions with manageable chop rather than organized swell. Water conditions remain rough-chop throughout, indicating busy tidal movement and shallow bathymetry.