Discover our islands


  • Hawaiian Islands






  • New Zealand

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  • Browse individual units

    Book a specific room to match your personal style

    View and select individual units from Castle Resorts
  • Big savings on your vacation

    Choose from a variety of discounts with Castle Resorts

    Specials and Offers from Castle Resorts
The ISO, Kauai's newest Boutique Hotel

The ISO - Island, Sky, Ocean

Experience Hawaii's Boutique Hotel of the Year Award Winner

Explore The ISO!

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If you find a lower rate on any third party Internet travel site, we will match that rate, and more.

New Zealand

Explore Our Destinations

Whether it’s your first visit or you’re returning to your favorite island paradise, discover how each destination offers its own distinctive personality and experiences.

You’ll find your perfect “home away from home” in our selection of affordable vacation rentals, resort condominiums and hotels.

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Six Island Destinations

Castle provides resort condominiums, Hawaii vacation rentals and island hotels in settings that range from rural charm to urban energy. Whether you’re planning a family reunion on Maui, romantic honeymoon on Kauai, or shopping spree in Auckland or Waikiki, you’ll find a choice of accommodations that are as distinctive as the destination.