Public transportation to the park islands is available year-round by three park concessionaires:
- Island Packers (805) 642-1393, for boat travel departing from Ventura and Channel Islands Harbors to all of the islands.
- Truth Aquatics (805) 962-1127, for boat travel departing from Santa Barbara Harbor to all of the islands.
- Channel Islands Aviation (805) 987-1301, for air travel to Santa Rosa Island.
The Santa Barbara and Los Angeles International Airports are within an hour's drive of the mainland visitor center. The closer Oxnard Airport also has scheduled commuter service.
Ventura is serviced in addition by Amtrak and Greyhound.
Airport shuttle services are available from the Santa Barbara and Los Angeles International Airports.
Ventura is located 70 miles north of Los Angeles and 30 miles south of Santa Barbara. From the 101 Freeway: northbound, take the Victoria Avenue exit, left onto Victoria, then right onto Olivas Park Drive to Harbor Boulevard, where Olivas Park Drive runs straight into Spinnaker Drive; southbound, take the Seaward exit left onto Harbor Boulevard, than proceed on Harbor to Spinnaker Drive, and turn right. The visitor center is located at the very end of Spinnaker Drive in the Ventura Harbor. Free parking is available at the beach parking lot.