The Channel Islands National Park includes five of the eight Channel Islands off the Southern Californian with visitor centers on the mainland at Ventura and Santa Barbara. The rugged national park itself can be visited by private boat or day or overnight trips arranged through Island Packers in the Ventura Harbor. A three-hour, non-landing cruise along north shore of Anacapa or Santa Cruz Island about an hour off shore will include spotting of sea lions, seals and island birds and close-up views of caves and rock formations including the park's trademark Cabrillo Arch Rock. Day hiking trips and overnight camping trips can also be booked. Recent storms have made several islands inaccessible to visitors.

nps.gov