Anacapa Passage is a significant marine channel separating Santa Cruz Island from Anacapa Island within the Channel Islands National Park off the coast of Southern California. This open-water passage is known for generating challenging conditions, with winds and seas frequently becoming steeper and stronger than in surrounding areas, sometimes exceeding 35 knots. The passage is exposed to the prevailing northwest winds, which can create a difficult headwind for paddlers, and the seas can be steep, with spray a constant companion. Paddlers should be prepared for open ocean conditions and have the experience to handle light to moderate winds, typically in the 4.5 to 5.4 m/s range, though conditions can change rapidly. A common access point for kayakers exploring the southeastern edge of Santa Cruz Island and the passage is San Pedro Point on Santa Cruz Island, which involves navigating near caves and keyhole passages that require careful timing to avoid surging water. The area features kelp forests and provides views of the rugged island cliffs and sea caves. The water body is part of a national park, and paddlers should be aware of all applicable park regulations. The passage is also used by larger vessels, including ferries and historic naval traffic, so paddlers must maintain situational awareness for boat traffic when crossing.