Exploring Catalina’s Underwater World : Catalina Express

Exploring Catalina’s Underwater World

Girl snorkeling on Catalina

The Island is well-known for its Mediterranean climate with summer water temperatures averaging 71 degrees that feel especially refreshing during this hot weather. From diving to kayaking or just a quick swim in the water, Catalina Island has a variety of activities that will let you and your travel companions enjoy the ocean this summer.

woman stand up paddle boarding in avalon harbor

Photo credit: ISLE Surf and SUP

Kayaking and SUP

What better way to have a great workout while you explore the Island’s rugged coastline than on a kayak or standup paddleboard. There are many convenient locations where you may rent: Wet Spot Rentals located right by the Catalina Express ticket window or Descanso Beach Ocean Sports at the Descanso Beach Club.


girl snorkeling in avalon

Diving and snorkeling

Catalina attracts divers from far and wide with its crystal-clear water and abundant marine life. The Island is truly another world underneath the waves. Catalina Divers Supply will make sure your diving adventure goes off without a hitch. If you are not certified for scuba diving, then snorkeling is the next best thing. No need to bring your own snorkeling gear, Catalina Divers Supply and Joe’s Rent a Boat are there to help you with rentals.


sub touring avalon harbor

Glass Bottom Boat and Semi-Submersible

Don’t want to get wet or you have little ones you want to show the deep blue sea? Try a Glass Bottom Boat tour or get a little closer to the action by trying a Semi-submersible. The Catalina Island Company offers both Undersea Expedition and Glass Bottom Boat tours.  Catalina Adventure tours offers The Nautilus Semi-Submarine Excursion. These activities are great alternatives to explore the sea life of Catalina Island without stepping into the water.


family fishing off catalina island


Fishing can be a thrilling and relaxing activity. Catalina Island has a great sportfishing history and you can be a part of it. From the fishing novice to the expert angler, Catalina Island can provide an experience of a lifetime. Charter a fishing vessel from Afishinado’s or Catalina Coastal Tours for a private guided fishing adventure. You can also rent a small boat from Joe’s Rent-a-Boat and explore on your own.



* To get the latest details on what's open and other travel advisories, visit Love Catalina Island.

Daily Boat Trips To Catalina Island

Discover paradise on Catalina Island with daily ferry trips to and from the island. More than one million travelers choose Catalina Island as their getaway each year and Catalina Express' large fleet of boats make the trip in about an hour, operating every day, year round from three mainland ports - Long Beach, San Pedro and Dana Point.

Escape To Catalina Island

Leave the hustle and bustle of the "mainland" behind. Catalina Island is the perfect place to take a break from the demands of daily life. With so many activities to choose from, your visit to Catalina Island can be adventure-packed or filled with rest and relaxation. With its year round Mediterranean climate, it's the ideal place to enjoy ocean air and sunshine.