Island & destination guide
Santa Catalina Island
Two Harbors, Los Angeles County, CA
Overview
Santa Catalina Island is Southern California's favorite boating destination. The island is about 22 miles long and 8 miles wide at its widest, and it lies roughly 29 miles south-southwest of Long Beach. Most of the island is protected land, and the Catalina Island Conservancy manages about 88 percent of it. Boaters come for two harbors, a string of leeward coves, clear water and the chance to spend the night on a mooring.
The crossing
San Pedro Channel is about 17 miles wide between Point Fermin and Point Vicente on the mainland and the island. From the mainland ports, published trips run about 25 nautical miles from Los Angeles Harbor to Two Harbors, about 26 from Newport Beach to Avalon, and about 29 from Huntington Harbor to Avalon. The channel is open Pacific water, and guides advise leaving in the morning, which is typically the calmest part of the day; the ride home is usually rougher. Check the NOAA marine zone forecast for wind, swell height and period, and set a go/no-go standard before leaving the dock. Traffic separation schemes serve the Los Angeles and Long Beach approaches, so look at the chart and keep a lookout for commercial ships. The lighted tower on Catalina can be seen for about 16 miles.
Moorings versus anchoring
Moorings come first. Avalon, Descanso Bay and Hamilton Cove have over 360 mooring sites, assigned first-come, first-served. Two Harbors has over 700 across a dozen sites, and these can be reserved in advance. Anchoring is allowed outside the mooring areas, at your own risk and often in deep water: at Avalon, the anchorage is outside the breakwater, west of the Casino and at least 300 feet from moorings, and in the Two Harbors area, anchoring is allowed 100 yards outside the mooring areas and must stay under 14 days. Both areas keep a 5 mph no-wake limit near moorings and anchorages, 10 pm to 7 am quiet hours for generators, and no sewage discharge.
Fuel and services
Gas, diesel and water are available year-round in Avalon and at the Two Harbors fuel dock. Fill up before you cross anyway: boaters are advised to use a rule of thirds, with one-third of fuel to go, one to return and one in reserve.
Where to go
Avalon is the island's only incorporated city and the main hub. Two Harbors lies on the narrow isthmus, with Isthmus Cove on the north side and Catalina Harbor on the south side. Coves along the leeward coast include Fourth of July, Cherry, Emerald Bay, Howland's Landing, White's Landing, Moonstone and Hen Rock.
Getting there & access
The crossing
The San Pedro Channel is about 17 miles wide at its narrowest point between Point Fermin or Point Vicente and the island. Plan on 25 to 29 nautical miles from the main harbors. Leave in the morning, file a float plan and check the marine zone forecast; the afternoon return is usually rougher.
Shipping traffic
Traffic separation schemes for the Los Angeles and Long Beach approaches lie in and around the San Pedro Channel. Check the chart for lane locations and keep a watch for commercial vessels.
Avalon check-in
Stand by the harbor entrance for a mooring assignment from a patrol boat. Avalon Harbor Department monitors VHF 12 and 16, or call (310) 510-0535. Advance reservations are not available to the general public.
Two Harbors reservations
Moorings at Two Harbors can be reserved online; availability for the coming weekend loads on Thursdays, with a two-night minimum on regular weekends and three on holiday weekends. Reach the Harbor Patrol on VHF 9 or at (310) 510-4254.
Anchoring
Anchoring is permitted outside mooring areas at your own risk. Avalon's anchorage is outside the breakwater, west of the Casino. At Two Harbors, anchor at least 100 yards outside mooring areas, and stays are limited to 14 days.
Amenities
- Avalon Harbor moorings — 360+ sites in Avalon Harbor, Descanso Bay and Hamilton Cove, first-come, first-served
- Two Harbors moorings — 700+ moorings in 12 locations including Isthmus Cove and Catalina Harbor
- Avalon fuel dock — Dion & Sons Marine Fuel Dock, (310) 510-0046; gas and diesel
- Two Harbors fuel dock — Gas, diesel and water year-round; propane onshore
- Shore boats — Avalon Shoreboat and Two Harbors shoreboat, VHF 9
- Pump-outs — Avalon: Pump-A-Head float and mobile service on VHF 68; Two Harbors: Isthmus main float and Cat Harbor
- Dinghy docks — For boats 14 ft and under at Two Harbors
- Coves — Fourth of July, Cherry, Emerald Bay, Howland's Landing, White's Landing, Moonstone, Hen Rock, Buttonshell
Rules & official resources
- Avalon is a no-discharge area: no sewage may be discharged, treated or untreated
- Discharge of black water into the Two Harbors area is strictly prohibited
- 5 mph no-wake speed limit near mooring areas and anchorages
- Generators must be secured from 10 pm to 7 am; quiet hours 10 pm to 7 am at Two Harbors
- Avalon moorings are assigned first-come, first-served; advance reservations aren't available to the general public
- Stays in a Two Harbors leased cove parcel can't exceed 14 days
- California Boater Card required for all operators of motorized vessels, regardless of age, since January 1, 2025
Common boat service needs here
Pre-crossing engine service
A channel crossing is the hardest day an engine has. Owners get cooling, fuel-system and belt checks before Catalina season.
Find Marine Mechanics & Engine Service providers →Electronics and charting
Crossing in morning fog or open water makes working GPS, radar, VHF and chartplotters a priority, and VHF is the main way to reach harbor staff.
Find Marine Electrical & Electronics providers →Hull cleaning
Boats that spend weekends on moorings and slips in warm water pick up growth; regular diver cleaning helps efficiency on the crossing. Divers also work in Avalon.
Find Bottom Cleaning, Hull Cleaning & Dive Services providers →Delivery and transport
Owners without time or experience for the crossing hire professional delivery or captains.
Find Yacht Management & Concierge providers →Pre-trip inspection
Surveyors and inspections give peace of mind for boats making their first open-water crossing.
Find Marine Surveyors & Inspections providers →Guides & FAQs
Nearby providers
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