Catalina Island Marine Protected Area wilderness guide
Marine Protected Area · CA
Snorkeling Guide

Catalina Island Marine Protected Area

Catalina Island Marine Protected Area (MPA) preserves diverse coastal and marine ecosystems around Santa Catalina Island, offering rich opportunities for snorkeling, diving, and wildlife observation.

Marine Protected Area23,000+4+ Trails

Designation

Marine Protected Area

Total Wilderness Area

23,000+

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Catalina Island Marine Protected Area

Catalina Island Marine Protected Area (MPA) preserves diverse coastal and marine ecosystems around Santa Catalina Island, offering rich opportunities for snorkeling, diving, and wildlife observation.

Wilderness Landscape & Natural Heritage

Located off the coast of Southern California, Catalina Island Marine Protected Area encompasses extensive kelp forests, rocky reefs, and sandy bottoms that provide critical habitat for a wide range of marine species. This MPA includes areas surrounding Catalina Island, part of the Channel Islands chain, protecting over 36 square miles of ocean environment from certain extractive activities. The protected waters serve as a refuge for species such as kelp bass, garibaldi, leopard sharks, and California spiny lobster, as well as a variety of marine invertebrates and bird species. Historically, Catalina Island has been inhabited by the Tongva people, and later developed as a recreational destination in the early 20th century. The marine area’s protection supports local commercial and recreational fishing by helping maintain healthy fish populations. Popular recreational activities include scuba diving and snorkeling in clear, kelp-filled waters, kayaking along rocky shorelines, and wildlife viewing of sea lions, dolphins, and migrating whales. The island's proximity to Los Angeles makes it a favorite destination for day trips and overnight visits focused on marine exploration and outdoor adventure. Visitors can access the area mainly through boat tours or private watercraft, with careful adherence to regulations designed to preserve the ecosystem. The MPA is co-managed by the California Department of Fish and Wildlife and local conservation organizations, enhancing community-based stewardship.

Field Guide · Marine Protected Area

Notable Landscape Features

Iconic geological landmarks, alpine vantage points, and distinctive ecosystems in Catalina Island Marine Protected Area.

Feature 1

Casino Point Underwater Park

A renowned dive site featuring vibrant kelp forests, rocky reefs, and abundant marine species, popular among scuba divers and snorkelers.

Feature 2

Avalon Bay

Sheltered bay providing calm waters ideal for kayaking, swimming, and wildlife observation near the town of Avalon.

Feature 3

Grotto Cove

A unique underwater cave system accessible to divers, offering dramatic geological formations and diverse marine life.

Key Wilderness Highlights

Rich kelp forest ecosystems supporting diverse marine lifePopular diving spots like Casino Point Underwater ParkFrequent sightings of sea lions and harbor sealsProtected spawning grounds for coastal fish species
Iconic Trails & Natural Landmarks

Top Trails & Sights in Catalina Island Marine Protected Area

Discover summit paths, alpine loops, and natural wonders within this protected wilderness.

Challenging38 miles

Trans-Catalina Trail

Crosses the island with stunning coastal and inland mountain views, offering a challenging multi-day backpacking experience.

Moderate2.5 miles

Garden to Sky Trail

Leads from Avalon to the island’s high points with panoramic views of surrounding ocean and MPA waters.

Easy1.8 miles

Hermit Gulch Trail

A short hike through chaparral to viewpoints overlooking Avalon and adjacent marine environments.

Moderate3 miles

Two Harbors Loop

A scenic coastal loop trail offering wildlife viewing and shaded beach areas near the island’s western settlement.

Wilderness Recreation

Outdoor Adventures in Catalina Island Marine Protected Area

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Activity Spotlight

Snorkeling in Catalina Island Marine Protected Area

View Full Park Guide

Catalina Island Marine Protected Area offers exceptional terrain and routes for snorkeling, featuring established access paths, scenic vistas, and protected wilderness territory.

Other Activities in Catalina Island Marine Protected Area:Scuba DivingWildlife ViewingKayakingFishingPhotographyBoating
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Catalina Island Marine Protected Area.

Passes & Fees

Entrance Requirements & Interagency Passes

No permits required to enter the MPA; fishing and collecting require permits as regulated by California Department of Fish and Wildlife

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Wilderness Stays

Camping & Overnight Stays in Catalina Island Marine Protected Area

Frontcountry developed campgrounds, backcountry wilderness permit guidelines, and starry-night camping advice.

Silver Canyon Campground

Located on Catalina Island near Two Harbors, this campground offers tent and RV sites with amenities and hiking access to the island’s interior.

Hermit Gulch Campground

Set near the town of Avalon, this popular campground provides convenient access to beaches and town facilities.

Adventure Basecamps

Gateway Towns Near Catalina Island Marine Protected Area

Stay, dine, and gear up in these mountain towns and scenic desert basecamps surrounding the park.

Avalon Beach, New South Wales, CA
Gateway Basecamp

Avalon Beach, New South Wales, CA

Avalon Beach in New South Wales offers vibrant surf, beautiful coastal hikes, and calm paddleboarding spots. With nearby national parks and sheltered bays, it’s an ideal destination for outdoor lovers seeking ocean and bush adventures.

Spring and AutumnExplore Town
Two Harbors, Minnesota, CA
Gateway Basecamp

Two Harbors, Minnesota, CA

Two Harbors is a lakeside haven for outdoor enthusiasts. With hiking, kayaking, and more, the stunning North Shore of Lake Superior offers endless adventure opportunities.

Summer and FallExplore Town