Photo: National Park Service Digital Image Archives, Public domainFloat over kelp forests, with orange garibaldi below and sea lions in the shallows, then step back onto an island with no cars, shops or hotels. Channel Islands National Park is the Galapagos of California. You arrive by boat and swim in cold, protected water.
A day at the Channel Islands is a boat day, and that is part of the thrill. The park sits off Ventura and Oxnard. The National Park Service names Santa Barbara Island, Anacapa and the eastern end of Santa Cruz as the best islands for snorkelers. Santa Rosa and San Miguel are windier and rougher, so they are not for beginners.
The kelp forest is the draw. At Scorpion Anchorage on Santa Cruz you walk into the water off a cobblestone beach and swim with garibaldi, California sheephead and opaleye, often with a guide. At Anacapa Landing Cove the kelp starts near the dock, with sea lions nearby. Santa Barbara Island is remote, and boat service there is currently suspended.
The water runs about 55 to 70 F, so plan on a wetsuit and a hood. The islands have no lifeguards, no food for sale and little or no drinking water. Bring everything you need, and take nothing out of the water, since much of this coast is a no-take marine reserve.
Tap a spot to see what it is like, then open its guide or get directions.
Tap a card for spotting tips and the Guardian rule for each animal. Filter by what you most want to meet.
California's bright orange state marine fish. Males guard their rocky nests fiercely and will swim right up to your mask.
Guardian rule: Fully protected in California. No taking, ever.
Hypsypops rubicundus
A fast-growing seaweed that rises from the rocks to the surface and forms underwater forests along Southern California. Sunlight through the fronds is the classic California snorkel view.
Macrocystis pyrifera
A big wrasse with a black head and tail and a red middle in males. It crunches urchins and crabs in kelp and rocky reef.
Semicossyphus pulcher
An olive green fish with bright blue eyes that schools in shallow, rocky water and tide pools along Southern California.
Girella nigricans
Playful, noisy and fast in the water. Sea lions haul out on rocks around La Jolla Cove and Catalina and sometimes zoom past snorkelers.
Guardian rule: NOAA asks you to stay at least 50 yards (150 ft) away. Never approach pups, and let curious sea lions come to you.
Zalophus californianus
A spotted, round-faced seal that rests on beaches and rocks in Southern California. Shyer than sea lions, it often slips into the water if people get close.
Guardian rule: Stay at least 50 yards (150 ft) away, especially during pupping season.
Phoca vitulina
The classic grey dolphin, common off Florida, California and Hawaii. You usually see them from the boat on the way to the reef.
Guardian rule: Watch from at least 50 yards. Never feed, chase or swim toward dolphins.
Tursiops truncatus
Thousands of humpbacks winter in Hawaii to mate and calve, mostly from December to April. Snorkelers often hear their songs underwater, especially off Maui.
Spotting tip: Put your head underwater and listen. The song carries for miles.
Guardian rule: Stay at least 100 yards away. Boats must keep the same distance.
Megaptera novaeangliae
Tiny, brightly colored sea slugs that crawl over rocks and kelp. Slow down in the shallows to find them.
Nudibranchia
Spiny grazers wedged into reef holes. Some have long, sharp spines that break off in skin, which is one more reason to never stand on the reef.
Echinoidea
A cobblestone beach opens onto a protected kelp forest. Guided tours and gear rental on the island make it the easiest island day for beginners.
Island Packers ferry from Ventura is required. Guided snorkeling from $165 per person plus ferry ($72 adult, $52 child 12 and under) on the operator's page. Park entry itself has no fee found. Directions
Healthy kelp and clear water by the island landing. Getting ashore means a ladder and about 150 stairs. The north side is a no-take reserve.
Island Packers boat fare applies, not listed on the pages opened. Check the booking calendar. Directions
A remote island with a sea lion rookery and kelp. Island Packers boats are not running because the pier is damaged, with no reopening date.
No public boat service at the time of checking. Island Packers says the damaged pier prevents safe landings. Directions
Calm Choppy Rough. Wave heights are offshore model values.
Loading tides…
Forecast: Open-Meteo. Tides: NOAA station 9411340. Model data, not a lifeguard report. Always check posted warnings.
by Channel Islands Adventure Company
Guided swim through the kelp forest off the beach. A 3-piece 7 mm wetsuit is included. Minimum age 10, swimming and prior snorkeling experience required. Offered Sundays, mid-June through September 30. Ferry adds $72 adult or $52 child.
The park's authorized concession for Scorpion Anchorage, guiding inside a no-take marine reserve.
by Channel Islands Adventure Company
About 1.5 hours paddling sea caves, then about 1.5 hours of guided snorkeling. Kayak, life jacket and a 3-piece 7 mm wetsuit included. Experienced kayakers and snorkelers only. Runs Tuesdays, Wednesdays, Thursdays and Saturdays mid-June through September 30. Ferry adds $72 adult or $52 child.
Small guided group with a briefing, run by the park's authorized kayak concession.
We may earn a commission when you book through these links, at no extra cost to you. It never changes which tours we pick. How we choose tours.
Late summer into early fall is the best bet, with the warmest water and the most boat departures. Island Packers calls May to September often good for snorkeling and kayaking at Scorpion. Guided snorkel tours at Scorpion run mid-June through September 30.
Morning, before the wind and swell build. NPS says wind and swell usually build from the northwest through the day.
Winter, when water is coldest and boats are often cancelled for weather. Strong east or Santa Ana winds can occur from October through January.
| Row | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snorkel conditions | Fair | Fair | Fair | Fair | Good | Good | Best | Best | Best | Best | Good | Fair |
| Garibaldi | Good | Good | Good | Good | Best | Best | Best | Best | Best | Best | Best | Good |
| California sea lion | Best | Best | Best | Best | Best | Best | Best | Best | Best | Best | Best | Best |
Start with Scorpion Anchorage on Santa Cruz: guided snorkeling, gear rental and a gentle beach entry. Anacapa Landing Cove is the pick for a self-guided day if you can handle a ladder and about 150 stairs with your gear. Santa Barbara Island has no public boat service right now. Santa Rosa and San Miguel are windy and not recommended for novices.
Island Packers runs the boats from Ventura Harbor and Oxnard. Its Santa Cruz page puts the Ventura to Scorpion Anchorage ride at about 1 hour, though Channel Islands Adventure Company says about 1.5 hours and notes a 9 a.m. daily departure from Ventura. Anacapa trips leave from both harbors. Santa Barbara Island is about 2.5 to 3 hours when service runs. Island Packers offices: 1691 Spinnaker Dr, Ventura, and 3550 Harbor Blvd, Oxnard. Book ahead.
Channel Islands Adventure Company runs guided snorkeling and a sea cave kayak plus snorkel tour at Scorpion Anchorage in summer. Wetsuits are included. You buy the Island Packers ferry separately.
The forests of giant kelp are the show, but the water is cold, with no lifeguards, no shops and no food or drinking water on Scorpion or Anacapa. Treat it as a wilderness day.
NOAA's sanctuary covers 1,470 square miles of ocean around the northern islands. Inside it, marine reserves protect the kelp forest from fishing, so fish are bolder and kelp is healthier.
Much of the water around the islands is a marine reserve, and the park and state add closures to protect birds and seals. Snorkeling and swimming are allowed in reserves. Taking anything is not.
In the park's marine reserves it is unlawful to injure, damage, take or possess any living, geological or cultural marine resource. That includes shells and rocks. Limited harvest is allowed only in the two marine conservation areas. Official rule
West Anacapa is closed to protect nesting brown pelicans, and the water off its north side is closed January 1 to October 31. Middle Anacapa is closed except for ranger-led tours. Official rule
Do not feed, collect or disturb wildlife. Flying a drone in the park is prohibited without written approval from the superintendent. Official rule
No lifeguards are on duty. Use a buddy, leave a float plan with someone ashore, stay clear of skiffs making surf landings and avoid sea caves that can flood suddenly. Official rule
How snorkelers protect reefs · Choosing a reef-safe sunscreen
These local groups restore coral, rescue wildlife and keep the water clean. Volunteer a morning, donate, or just follow their work.
Federal protection of 1,470 square miles of ocean around the northern islands
NOAA manages the sanctuary around Anacapa, Santa Cruz, Santa Rosa, San Miguel and Santa Barbara. Its site covers regulations and ways to plan a visit.
Visit channelislands.noaa.gov →
The NPS points snorkelers to Santa Barbara, Anacapa and the eastern end of Santa Cruz. Scorpion Anchorage on Santa Cruz is the easiest, with guided tours and rental gear. Anacapa Landing Cove has clear water and kelp. Santa Barbara Island has no public boat service at the moment.
The park lists 55 to 70 F and recommends wetsuits and hoods. Guided tours at Scorpion include a 3-piece 7 mm wetsuit. If you go on your own, bring or rent a thick wetsuit, hood and gloves.
Take an Island Packers boat from Ventura Harbor or Oxnard. Scorpion Anchorage trips leave Ventura and take about an hour per Island Packers. Anacapa trips go from both harbors. Booking ahead is wise, and trips can be cancelled for weather.
Yes. Swimming and snorkeling are allowed in marine reserves. You may not take or disturb anything, including shells and rocks. Some areas, like the north side of West Anacapa, are closed to protect nesting pelicans.
Almost none. Scorpion has no food for sale, and Anacapa has no potable water, a small visitor center and vault toilets. Bring food, water, a hat and sunscreen. Guided snorkeling and gear rental are only at Scorpion Anchorage.
What we pack for every snorkel trip. Each link searches the category on Amazon so you can compare brands and prices.
Non-nano zinc oxide only. No oxybenzone or octinoxate, which Hawaii bans.
Shop on Amazon →The best sun protection is fabric. Less sunscreen in the water, less sunburn on your back.
Shop on Amazon →Southern California water runs 58 to 72°F. A 5/4 mm suit in spring, 3 mm in late summer.
Shop on Amazon →An inflatable vest lets you rest without standing on the reef. Lifeguards love them.
Shop on Amazon →As an Amazon Associate we earn from qualifying purchases. Disclosure.
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We check fees, rules and access against official sources first, then local operators and recent visitor reports. Conditions change, so always follow posted signs and lifeguards. Spotted something out of date? Tell us.
