Catalina Island Marine Institute (CIMI) is a hands-on outdoor science and ocean camp on Catalina. Offering school year and summer programs for kids since 1978.

Catalina Island, CA
Joined April 2014
Kayaking through the ocean. Nothing beats learning, exploring, and getting a little closer to the marine world. #OceanKayaking #MarineScience #CIMI #OceanAdventure #FoxLanding
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Getting our hands dirty, exploring the intertidal zone, and discovering marine life up close at CIMI with tidepooling!
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CIMI starts next week! We’re so excited to welcome students back for the Fall 2026 season and kick off another great year at CIMI!
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Night snorkeling at CIMI, experiencing the ocean after dark brings a completely different perspective to the island and the marine life below the surface.
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A day in the water with CIMI! Clear conditions, calm seas, and an unforgettable snorkeling experience along the coast of Catalina!
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Exploring Catalina’s coast the CIMI way.
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The years may pass but the sunbathing and ocean swims never get old! We are so lucky to have such a beautiful island and sea we get to explore.
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Nothing beats the views (and vibes) around the campfire at CIMI!
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It's always a great day for a snorkel at CIMI!
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Day trip, touch tanks, tide pools, and time well spent. #CIMI
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Who remembers Cherry Cove? Throwback time! This photo shows the beach at Camp Cherry Valley, where Ross and Kristi launched Guided Discoveries while working with the Boy Scouts of America in the late 1970s (around 1977–1979).
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Observing colorful nudibranchs and other sea creatures during a hands-on lab at CIMI’s touch tanks. Students explore marine life up close
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Plankton Lab: Get up close and personal with the tiniest creatures of the sea!
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Scale the Night Rock Wall at CIMI! Test your skills, feel the thrill, and climb under the stars.
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The ocean isn’t just studied, it’s experienced. At CIMI, students learn by seeing, touching, and exploring the sea firsthand.
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Board the boat in Long Beach, and before you know it, you’re at CIMI!
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If you enjoyed your trip with your school, come back for an unforgettable summer! Catalina Sea Camp early bird savings are happening now. Enroll by January 31 to save at the link!🐚 buff.ly/0C2Wt4Q
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Work with your buddy to navigate the waves and discover the ocean, sea kayaking at its best!
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Nothing beats a night snorkel, an entire new world comes alive beneath the stars and sea!
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CIMIS touch tanks provide students a hands on chance to explore the fascinating creatures of the sea!
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