Tijuana Sloughs

Tijuana Sloughs is an exposed big-wave surfing area at the mouth of the Tijuana River just south of Imperial Beach. Working surf is primarily associated with the outer shelves breaking on large West or Northwest swells, while closer-to-shore lines are referred to as “Boca Rio.” The break can hold very large, powerful waves offshore, and riders may need a long paddle and a remote approach. Conditions come with major safety and environmental risks. The water is described as polluted, with sources highlighting sewage runoff from the Tijuana River—particularly after rain—plus hazards including sharks. Currents are also a consistent concern, with strong longshore flow and rip currents reported, and additional hazards such as river debris, deep water channels, and occasional sandbars. Because the spot is remote and access can be difficult on foot, the session demands expert experience and strong self-rescue capability. Riders are advised not to surf alone and to consider water-vehicle support (such as a boat or jet ski) to handle the long distance from shore and to improve safety management. Timing-wise, sources indicate it most reliably works during winter big-swell months (notably January, with additional mentions of December through February) when the necessary large West/Northwest swells and offshore wind patterns are more likely. Water temperatures are typically cold year-round, so appropriate thermal protection is important, and players should verify current water quality conditions before entering the water.