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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
Sophie “Good”
05 Jul 2025
I loved the location, peacefulness of the garden and sea view including beach access for a walk (no swimming), the swimming pool and morning yoga. Room was perfect and all rooms have sea view which is a plus compared to other options.
Thannawat “A wonderful stay with a beautiful view and great staff!”
22 May 2025
The ocean view room had a fantastic view of the beach, and it was a nice size. There's an abundance of parking spaces too. The reception staff were also very nice and accommodating. Overall, a very good place for the price on Kauai island.
Marie “All in all , loved the place!”
01 May 2025
We came in a day early and they were able to find us room and then upgraded our room ! Our room was right at the beach ...loved it ! Loved listening to the ocean at night ...lulled me to sleep. Had a glitch with the TV but they fixed that asap. Bed was comfy...over all great experience. We would stay there again:)
Sylvia “Enjoyable stay”
27 Apr 2025
Given a top floor room overlooking the pool and ocean, clean and very comfortable bed with drip filter coffee in room. Filtered water available in reception, breakfast items are sugar loaded but fresh pineapple and yoghurt was welcome. Staff friendly and helpful, thanks for assisting with opening a corked bottle! :)
