Book Your Trip

- Things to Do
- Land Tours
- Catalina Island Zip Line Eco Tour
- Ridgetop Eco Adventure Tour
- Discover Avalon
- Journey to the Sky
- Bison Expedition
- Catalina Aerial Adventure
- Catalina Falconry Experience
- Hiking / Walking
- Ocean Tours
- Discover Two Harbors
- Undersea Sub Expedition
- Glass Bottom Boat
- Flying Fish Voyage
- Fishing
- SCUBA
- Exclusive Tours
- Descanso Beach Club
- Cabana Rentals
- Island Spa Catalina
- Camping
- Trans-Catalina Trail
- Events
- Catalina Wine Mixer
- Catalina Casino Tours
- Discover the Casino
- Behind the Scenes
- Avalon Theatre
- Shopping
- Catalina Island Gift Cards
- Golf
- Catalina Island Golf Course
- Golf Gardens Mini Golf
- Two Harbors
- Visitor Services
- Two Harbors Annual Events
- Buccaneer Days
- General Store
- Outdoor Activities
- Harbor Sands
- Safari Bus
- Hiking & Backpacking
- Biking
- Disc Golf
- Water Activities
- Shore Boat
- Dive & Recreation Center
- Fishing Skiffs
- SCUBA
- Kayaking
- Snorkeling
- Two Harbors Boating
- Two Harbors Mooring Special
- Mooring Sites
- Mooring Around Two Harbors
- Mooring Info & Rules
- Mooring Reservations & Fees
- Boat-In Camping
- Ripper's Cove
- Paradise Cove
- Cabrillo Beach
- Lava Wall
- Gibraltar Beach
- Goat Harbor
- Long Point
- Italian Gardens
- Willow Cove
- Land & Marine Services
- Course Settings
- Marine Preservation
- Trans-Catalina Trail
- Trans-Catalina Trail
- Lodging
- Avalon
- Pavilion Hotel
- Hotel Atwater
- Mt Ada
- Guest Rooms at Mt Ada
- Mt Ada Amenities
- ADA Features
- Two Harbors
- Banning House Lodge
- Villa Santa Rosa
- Villa Santa Cruz
- Camping
- Two Harbors Camping
- Two Harbors
- Bahia Azul
- Brisa Del Mar
- Deck Rooms
- Little Harbor
- Avalon Camping
- Hermit Gulch
- Primitive Camping
- Black Jack
- Parson's Landing
- Boat In Camping
- Camping Guidelines & FAQs
- Rental Gear Supplies
- Packages
- Lodging
- Best of Winter
- Boat & Hotel
- Romance Package
- Third Night Complimentary
- Catalina Wine Mixer Hotel Packages
- Boat & Banning House Lodge
- Tall Tiki Tales Package
- Activities & Adventures
- Ship & Zip
- Boating
- Mooring Offers
- Dining
- Avalon
- Antonio's Pizzeria & Cabaret
- Avalon Grille
- Bistro at the Atwater
- Descanso Beach Club
- CHILL at Descanso Beach Club
- Catering
- Two Harbors
- Harbor Sands
- Harbor Reef Restaurant
- Summer Dance Party
- Harbor Reef Saloon
- West End Galley
- Isthmus Picnic Sites
- About the Island
- Blog
- Webcams
- Catalina Island Avalon Harbor Webcam
- Descanso Beach Club Webcam
- Two Harbors Webcam
- Itineraries
- History
- Catalina Island Casino
- Historical Information
- Island Guide
- Avalon
- Two Harbors
- Tour Plaza
- Pleasure Pier
- Weather
- Beaches
- Blog
- Transportation & Maps
- Maps
- Getting Here
- Getting Around
- Points of Interest
- El Rancho Escondido
- Catalina Island Museum
- Wrigley Memorial & Botanical Gardens
- Civil War Barracks
- Airport in the Sky
- Banning House Lodge
- Catalina Country Club
- Mt Ada
- Press Releases
- About Catalina Island Company
- Social Media
- Sign Up For Special Offers
Mt Ada
In 1919, William Wrigley Jr. purchased Santa Catalina Island. Wanting an island home for his wife, Ada and himself, he sought out the best location in Avalon, which turned out to be at the top of a lovely mountain, with a full commanding view of the island, Avalon and the Pacific beyond.
It was the first spot to receive the morning sun and the last of the afternoon sun as it dipped behind the mountains. Wrigley named the mountain top Mt Ada. In asking his wife what she would like the house to look like, Ada answered that she had always wanted a house with dark green shutters. Returning from Chicago the following year, Mrs. Wrigley arrived on the island to find this lovely Georgian Colonial Mansion with dark green shutters.
The home was completed in 1921. “L” shaped, the mansion wraps around a formal motor court entry on the mountain side, and a grand staircase of over 100 stairs, leading up to the home from the ocean side.
Mrs. Wrigley was fond of succulents and cactus and had the garden planted with a number of unique species. The home was originally designed using her own ideas, involving three stories, a Turkish bath, billiard room, organ chamber, and a refrigerating room.
There were also six bedrooms, a sun room, and an elegant terrace porch. However, many of these original design details were modified or removed entirely such as the entire third floor of the home.
1921 is also the year that Mr. Wrigley decided to have his baseball team, the Chicago Cubs, hold Spring Training on the island. Although Mr. Wrigley usually watched the training from the bleachers, he had made sure he could watch them from his mansion office as well.
The Wrigley's enjoyed their time on the island and would visit at least twice a year until Mr. Wrigley’s passing in Arizona in 1932. They entertained Presidents, royalty and princes of industry, but mostly enjoyed island living, the Chicago Cubs and the community of Avalon. Mrs. Wrigley continued to love and visit the home after her husband's death.
During the 1960’s, visitors could tour the mansion until the Wrigley family donated it to the University of Southern California to use as a Marine Science Center.
In 1985, the property was leased to a private party who set about re-creating Mt Ada as a bed and breakfast. They turned it into a highly successful venture which has been awarded the Mobil Travel Guide 4-Star rating, Conde Nast’s “Best in the World” Readers Choice Award, the Forbes Four Star Award and several TripAdvisor Certificates of Excellence. Mt. Ada is now managed by the professional hospitality team of the Catalina Island Company.