Wailua Rentals USA Hawaii Kapaa Wailua

The ISO by Castle | Resort in Kapaa

| 8.4 (1007 Reviews) |  1 Bathroom  Stay&Play
Wailua Resort | The ISO by Castle

Resort in Wailua, Kapaa

Beach resort with an outdoor pool and a restaurant
At The ISO by Castle, relax by an outdoor pool or hit the beach where you can enjoy snorkeling.
The ISO by Castle 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.

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Unique Amenities

  • Air Conditioner
  • Pool
  • TV
  • Balcony/Terrace
  • Security/Safety
  • Bedding/Linens
  • Restaurant
  • Bar
  • Toiletries
  • Guest Services
  • Child Friendly
  • Internet
  • Kitchen
 
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Policies

Check-in Check-in start time: 3:00 pm; check-in end time: 10:00 pm minimum check-in age: 18
Check-out A late check-out fee will be charged check-out before 11 am late check-out subject to availability
Payment Policy Late check-out is available for a fee (subject to availability) the above list may not be comprehensive. fees and deposits may not include tax and are subject to change.
Child Policy Children are welcome. rollaway/extra beds are not available.
Pet Policy Pets not allowed
Other Policy 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 safety features at this property include a smoke detector 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 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
 
4-796 Kuhio Hwy, Kapaa, 96746, USA

What Our Guests say 500 + Reviews

Sep 24, 2025 11:18:55 PM
Summary: It's a great hotel, near the airport and the main road to go anywhere in Kauai. I will definitely stay there again.
Hallei Hallei
Aug 4, 2025 02:27:20 PM
Summary: The pros: great location - could not be closer to the ocean. Sound of the waves at night was awesome. Friendly staff and nice paths to walk. Cons: dated rooms with a musty smell. Not much space and the outside needed some updates. Parking is cramped.
Elizabeth Elizabeth
Jul 21, 2025 01:55:15 AM
Summary: Older establishment but very clean, great view and good restaurant nearby. Only couple of blocks from coconut market. Gave you privacy only tidied your room upon request. Affordable.
Cynthia Cynthia
Jul 20, 2025 07:27:48 AM
Summary: Staff is extremely friendly & knowledgeable one AC did not work & second room. AC was adequate, but could’ve been a little colder. property was in good shape
Wallace Wallace
Jul 18, 2025 12:27:09 PM
Summary: Had a lot of amenities like a nice grab and go breakfast as well as bikes you could rent out. They also did morning yoga and had a great pool.
Kiarah Kiarah
Jul 17, 2025 01:03:00 AM
Summary: Somewhat remodeled hotel, not a resort. Do not bring your kids no beach and beach swimming. Located on water but unable to swim due to rocks and break. AC needs upgrade and was there for three days and was offered no housekeeping service. Was handed towels and they never came to room to ask if I needed service. Very very poorly done. For the price I would look at other options.
Paul Paul
Jul 15, 2025 05:44:50 AM
Summary: Great location nice restaurant attached to Hotel. No beach for swimming though but very nice location on the water. Nice pool very quiet location.
Paul Paul
Jul 12, 2025 06:41:01 AM
Summary: The property is just old and the rooms are very small for two non married people even though they had two beds. They try hard to keep it clean but remodeling is necessary. All in all it was a good stay
Malcolm Malcolm
Jul 9, 2025 05:14:22 AM
Summary: Great location, bikes were nice for the bike path, breakfast,grab and go was helpful.. property was older but well kept.
Donna Donna
Jul 7, 2025 03:48:12 PM
Summary: Nothing to dislike like about the stay. Will recommend for friends for certain who want to visit Kauai. Experience was amazing, along with the staff.
Steve Steve

FAQ's

Is this The ISO by Castle pet-friendly for guests?

No, pets are not allowed at this property. Check the guest reviews to learn what guests had to share.

Does the The ISO by Castle have a swimming pool?

Yes, this The ISO by Castle has a swimming pool. Check the Facility Overview section for details about the pool and other available facilities.

How much does it cost per night to stay in The ISO by Castle?

Best-rates for the The ISO by Castle starts from $270 per night with includes Guest Services, Internet, Kitchen, TV, Balcony/Terrace, Security/Safety, Bedding/Linens, Child Friendly, Air Conditioner, Pool, Restaurant, Bar, Toiletries StayAndPlay offers fully equipped golf villas, golf hotels, golf resorts, luxury golf cabins, and exclusive golf retreats, making it easier than ever to find your perfect golf escape — ideal for families, peaceful getaways, or pet-friendly retreats with the whole crew.

Is The ISO by Castle a family-friendly place to stay?

Based on the information we have received from the owner or our partner, this is considered to be a family-friendly property. Families have rated this resort 3 stars or guests have recommended them suitable for families. As reported by the owner or manager, the resort has specified that children are welcome. Please see details about suitability for your family or inquire with the property to learn more.

Is the The ISO by Castle wheelchair accessible or offer services for disabled guests?

Based on the information received from our partner, the The ISO by Castle has not specified they are wheelchair accessible. Likewise, there is not an elevator specified as being available at the property. Specific accessibility details may be addressed in the property details section of this page.

What is the minimum night stay policy for the The ISO by Castle?

Based on the information reported by the owner or manager, the The ISO by Castle indicates 1 day stay policy at this resort. Guests are cautioned that the minimum stay policy may differ based on seasonality or availability and may be at the discretion of the owner or manager.

What cancellation policy is in place for The ISO by Castle?

Based on the information reported by the owner or manager, details for the cancellation policy for the The ISO by Castle are as follows: Cancellation policy Guests are cautioned that the cancellation policy may differ based on seasonality, availability, or current travel restrictions. Guests should also be aware that this policy may be subject to change and should be confirmed prior to booking. More details may be available on this page in the property description. However, early check-in or late check-out can sometimes be negotiated between the guest and the owner or the manager of this property.

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