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4-796 Kuhio Highway, Kapaa, Hawaii (Hi), HI 96746 , USA (show map)
Hotel Overview
Formerly The ISO
Before September 2024 The ISO by Castle was known as The ISO
Before March 2019 The ISO by Castle was known as Castle Mokihana
Lock in a great price now and relax with our Price Guardian working for you
Hotel prices fluctuate. Book now, we will check prices each day for you and then let you know how to re-book if an even better price becomes available.Rooms List
Hotel Ocean View Setup a Price Alert for The ISO by Castle
Each day we'll check prices and send you an email for your selected dates at The ISO by Castle. If you don't have specific dates but would like to check prices for say next weekend or say next month we can check the price too.
When the hotel goes on sale you will know straight away from the daily email and be able to book with confidence that you've got excellent value.
Facilities of The ISO by Castle
General
Free parking, On-site parking, Parking
Services
Free WiFi, Internet services, WiFi
Food & Drink
Bar, Restaurant
Pools and wellness
Beachfront, Outdoor pool
Miscellaneous
Air conditioning, Non-smoking rooms, Non-smoking throughout
Room facilities [ These may vary room to room ]
Air Conditioning, Alarm clock, Balcony, Bath or Shower, Bathroom, Cable Channels, Coffee machine, Dining area, Dining table, Dishwasher, Fan, Flat-screen TV, Free toiletries, Hairdryer, Iron, Kitchen, Kitchenette, Kitchenware, Linen, Oven, Patio, Refrigerator, Sea view, Seating Area, Shower, Stovetop, Toaster, Toilet, Towels, TV, Upper floors accessible by stairs only, View
Hotel Policies
Check-In
From 15:00:00 hours
Check-Out
-11:00:00 hours
Cancellation / Prepayment
Cancellation, prepayment and 'book now pay later' policies vary according to room type. Please check the room conditions when selecting your room above.
Accepted credit cards
The hotel reserves the right to pre-authorise credit cards prior to arrival.
The fine print
Guests are required to show a photo identification and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.
Traveller reviews
Ricardo “Cozy place, nice location, no coffee”
20 Oct 2025
Nice location close to the airport, free parking and amazing bedroom view with an oceanfront pool area
Sych “Superb”
06 Sep 2025
We chose this hotel to celebrate our anniversary, and it turned out to be the perfect getaway - just like a scene straight out of Pinterest. From the to-go breakfast and morning yoga sessions to falling asleep to the sound of the waves (extra thanks for the mosquito nets!), everything was spot on. Loved that we could refill our water anytime, and the complimentary merch bottles were such a thoughtful touch.
Jenny “Great location and stay”
05 Sep 2025
Great location by the beachfront. Very peaceful and beautiful
Matilda “Nice views”
24 Aug 2025
Clean and good location if you have a car since you can both drive north and south. Also close to a shopping center so you can get food etc easily. Nice views!
