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This Art Deco landmark, built for William Wrigley Jr, opened in 1929 and was never a gambling place. It contains a movie theater and a ballroom that once hosted nationally broadcast concerts. Murals of underwater scenes adorn the exterior.

Over 7,000 years of island history come alive at this small museum in the Casino building. Highlights include locally found archaeological artifacts, pottery, and photographs from Catalina’s days as the darling of Hollywood.

Great for encounters with finned creatures, this reserve was Southern California’s first city-designed water park (established in 1965). Fun for divers.

The nation’s oldest (1898) fishing club, it was the first to develop modern angling rules for sport-fishing. Winston Churchill and Teddy Roosevelt have been visitors here.

This green pier has been the hub of Avalon activity since 1909. For years, it was the official weighing station for tuna, marlin, and sea bass brought in by game fishing enthusiasts.

Rent a snorkel and take to the clear blue waters of this poetically named marine preserve teeming with golden Garibaldi (California’s state marine fish), as well as schools of opaleyes, blue perch, and other fish.

The monument to William Wrigley Jr, built in 1935 with local materials, lords over huge gardens. Plants here include eight species unique to the island, including Catalina ironwood and wild tomato.

In 1929, William Wrigley Jr. made Catalina the spring training ground for his baseball team. The historic clubhouse is now a restaurant.

Island explorations may lead to encounters with herds of chocolate-colored buffalo. The first 14 animals were brought to Catalina in 1924 for a Zane Grey film.

Popular with boaters, hikers, and campers, tiny Two Harbors is a slow-paced rustic village on a natural isthmus about 23 miles (37 km) west of Avalon. It is served by ferry from the mainland and by bus from Avalon.