Kama'aina Discount

Travel: Now - 12/15/23
Book: Now

The ISO

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In the Greek language, iso translates to equal. Yet, you'll quickly grasp that The ISO (Formerly Castle Mokihana) is unequalled in embracing the adventure, romance and culture of Hawaii's - Island of Discovery.

Located in the seaside town of Kapaa on Kauai's east coast, this new boutique hotel encompasses all of the best things about the Garden Isle. From charming, newly-renovated guest rooms to a variety of on-site activities and amenities, The ISO offers an experience you can carry with you forever.

Nightly Rates
From $ 229 $195* *Excluding Taxes & Fees
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*Terms & Conditions

  • Proof of Hawaii residency must be presented at check-in.
  • Valid identification must be presented at check-in.
  • Valid for travel year round at participating Castle Resorts and Hotels.
  • Rates are non-commissionable.
  • Rates shown are subject to availability and do not include taxes and fees.
  • May not be combined with other offers.
  • Standard deposit/cancellation policies apply.
  • Other restrictions may apply.