Chinese Harbor, also known as China Bay, is a coastal indentation on the northeast coast of Santa Cruz Island within Channel Islands National Park. It is a destination for experienced sea kayakers, accessible via a multi-mile open-water crossing from the mainland or as a point-to-point paddle from other island locations like Scorpion Anchorage. There is no formal launch facility directly at Chinese Harbor; paddlers typically access it by landing on its cobblestone beach, which requires careful navigation through a surf zone. The harbor offers limited protection, especially from west winds and swell, which can create a roiling sea state even with an opposing easterly breeze. Prevailing conditions are heavily influenced by the Santa Barbara Channel, where strong, shifting winds are common. Santa Ana winds can blow from the east at 30 knots or more, but these are frequently followed by a dramatic 180-degree shift to strong westerlies, a critical safety consideration for trip planning as a lee shore can develop quickly.

The paddling experience is defined by dramatic coastal scenery, including sheer yellow cliffs and numerous sea caves along the route. Wildlife sightings, such as the endemic Channel Islands fox, are common on shore. The harbor itself is relatively small and open, with anchoring depths around 40 feet over a sand bottom. For kayakers based at Scorpion Anchorage on Santa Cruz Island, a day trip to Chinese Harbor and back covers approximately 10 miles of coastline rich with rock formations and caves. Paddlers must be entirely self-sufficient, as there are no facilities, potable water, or services. All trash must be packed out. The water is part of a national park and marine sanctuary, and general cleanliness is high, though water temperatures are cool year-round due to the Pacific Ocean influence. The primary appeal is remote, exposed coastal exploration suited for skilled paddlers with solid seamanship, self-rescue capabilities, and appropriate gear for rapidly changing conditions.