At THE ISO HOTEL, Trademark Collection by Wyndham, relax by an outdoor pool or hit the beach where you can enjoy snorkeling.
THE ISO HOTEL, Trademark Collection by Wyndham offers 78 air-conditioned accommodations with complimentary toiletries and ceiling fans. Rooms open to balconies. 42-inch flat-screen televisions come with cable channels. Guests can make use of the in-room refrigerators and coffee/tea makers. Bathrooms include shower/tub combinations.
Recreational amenities at the resort include an outdoor pool.
The recreational activities listed below are available either on site or nearby; fees may apply.
Our customers tell us they can't get enough of the pool at THE ISO HOTEL, Trademark Collection by Wyndham. During your stay, you're just a quick walk from Waipouli Beach. You'll find features like an outdoor pool, a restaurant, and a bar.
Enjoy local cuisine and a beachfront location while dining at The Bullshed Restaurant
Take a swim in the outdoor pool
Amenities include a water dispenser
Onsite recreation includes yoga classes and bike rentals
Guests have great things to say about the beach and the clean accommodations
10 minutes by foot from Waipouli Beach and a 2-minute drive from Coconut Marketplace
There's a restaurant on site. You can enjoy a drink at the bar/lounge. THE ISO HOTEL, Trademark Collection by Wyndham also features an outdoor pool, a garden, and a water dispenser.
This 3.5-star Kapaa resort is smoke free.
The Bullshed Restaurant - This beachfront restaurant specializes in local cuisine and serves dinner only. Guests can enjoy drinks at the bar.
Property amenities
Internet
Available in all rooms: High-speed internet
Food and drink
A bar/lounge
A restaurant
Restaurants on site
The Bullshed Restaurant
Things to do
Bicycle rentals
Outdoor pool
Snorkelling
Yoga classes
Family friendly
In-room refrigerator
Outdoor pool
Conveniences
Limited-hour front desk
Water dispenser
Outdoors
Garden
On the beach
Accessibility
No lift
More
3 floors
5 buildings
Smoke-free property
Water dispenser usage encouraged
Room amenities
Bedroom
Bedsheets provided
Blackout drapes
Bathroom
Free toiletries
Private bathroom
Shower/bathtub combination
Towels provided
Entertainment
42-inch flat-screen TV with cable channels
Food and drink
Coffee/tea maker
Refrigerator
More
Air conditioning
Ceiling fan
Laptop workspace
Policies
Check-in
Check-in start time: 3:00 PM; Check-in end time: 10:00 PM
Minimum check-in age: 18
Check-out
Check-out before 11 AM
Late check-out subject to availability
A late check-out fee will be charged
Special check-in instructions
The front desk is open daily from 7:00 AM - 10:00 PM
Front desk staffed during limited hours
Information provided by the property may be translated using automated translation tools
Access methods
Front desk (limited hours)
Pets
No pets allowed
Children and extra beds
Children are welcome.
Rollaway/extra beds are not available.
Payment types at the property
Important information
Fees
Guests will be asked to pay the following charges at the property:
Resort fee: USD 35.61 per accommodation, per night
The resort fee includes:
Additional inclusions
Fitness/yoga classes
Newspaper
Parking
Self parking
We've listed all charges provided to us by the property.
Optional extras
The fees and deposits listed below will be charged at the time of service, check-in, or check-out.
Late check-out is available for a fee (subject to availability)
This may not be a comprehensive list. Fees and deposits are subject to change and might not include tax.
You need to know
This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession.
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
Tax ID - W-34434930-01
This property accepts credit cards and debit cards; cash is not accepted
Safety features at this property include a smoke detector
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room
The front desk at this property is open daily from 7:00 AM - 10:00 PM. Front desk staff will greet guests on arrival at the property.
If you cancel your booking, you'll be subject to the host's cancellation policy. In accordance with EU regulations about consumer rights, property booking services are not subject to the right of withdrawal.
We should mention
Registered guests are the only ones allowed to be in guestrooms.
Property is also known as
Castle Mokihana
Castle Mokihana Hotel
Castle Mokihana Hotel Kapaa
Castle Mokihana Kapaa
Mokihana Of Kauai Hotel Kapaa
ISO. Island. Sky. Ocean. Resort Kapaa
ISO. Island. Sky. Ocean. Resort
ISO. Island. Sky. Ocean. Kapaa
ISO. Island. Sky. Ocean.
ISO Sky Ocean Resort Kapaa
The ISO by Castle Kapaa
The ISO by Castle Resort
The ISO. Island. Sky. Ocean.
The ISO by Castle Resort Kapaa
THE ISO HOTEL, Trademark Collection by Wyndham Reviews
Reviews
8.4
Very good
All reviews shown are from real guest experiences. Only travellers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.More informationOpens in a new window
Everything else is great other than the Wi-Fi connection. Can only login couple of times - even in midnight the connection fails consistently. My guess is the server only allows certain number of devices to login for the whole property. Then in the room both Verizon and T-Mobile cell phone signals are next to none. We literally had a very quiet vacation disappearing from the grid because kids even had a hard time to contact us. Hope management can invest some money to improve the Wi-Fi system.
Edith
Stayed 4 nights in Nov 2025
10/10 Excellent
Nicole, Sierra Madre
10 Nov 2025
Nicole
Stayed 5 nights in Nov 2025
8/10 Good
Nick
Travelled with family
9 Nov 2025
Disliked: Amenities
Location was great, ocean view and chairs were nice. Room is pretty bare bones and the restaurant being closed felt like we were missing out on drinks and meals on site. Chickens will likely wake you up early each day but they were fun to watch running around. Pool was nice to hang out around outside.
The Balcony was PERFECT! I would definitely return.
I would only suggest the Fire Pit stay on maybe till 11pm for us nite owls. And maybe more lighting.
The outdoors blue light was nice. But maybe a few more colors for a well rounded minimal lighting experience =)
Hotel is nice but unfortunately too much construction going on at the time of stay and restaurant was closed. I would consider coming back once construction is complete. Overall, liked the location and the stunning view of the ocean.
Such a nice getaway my husband and I had at the ISO. From our room we could look out at the pool and beautiful ocean.
Super comfy bed and pillows. Great size room. The staff is super nice and helpful. So friendly too! I will definitely stay there again once I get back to Kauai
Loved the ocean view from my room. The room was clean and staff was super friendly and helpful to all my questions. Most importantly to me was that the walls were thick or insulated enough that i couldn't hear any of the adjacent neighbors through them.
Loved this place. We enjoyed our room, staff was always nice and friendly. Loved being able to check the bikes out. For the price for the ocean view, you can’t beat it. Would definitely stay here again!
Excellent location very nice staff , our ac unit was faulty However with it only being a 2 night stay it wasn’t worth the hassle, they were extremely friendly I’m sure if I pushed the issue they would have dug into it, also was fully booked
The view was okay and also the pool. We only stayed 2 nights instead of 4 nights we moved to another hotel nearby ,the room smells bad & carpet very old ,need renovation ,no bar no restaurant because they’re under renovation. The front lobby was also not nice .I m not recommending to stay in this hotel .
Judy B
Stayed 4 nights in Sep 2025
10/10 Excellent
Catherine Clare
Travelled with family
8 Sept 2025
Liked: Amenities
The rooms were clean but the property is run down in a few areas. Customer service was good but one of the ladies at check didn’t appear to like her job. I don’t have her name but she was the middle aged blond lady. Everyone else was wonderful.