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THE ISO HOTEL, Trademark Collection by Wyndham

3.5 star property

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Photo gallery for THE ISO HOTEL, Trademark Collection by Wyndham

A modern living room with a blue ceiling, a sofa, a coffee table, and a view of the beach through large windows.
A beachfront hotel with a pool area, lounge chairs, and palm trees.
Exterior
An aerial view of a resort with a swimming pool, beach, and palm trees.
A hotel room with a bed, a TV, a desk, and a view of the ocean.

Reviews

8.4 out of 10
Very good

Popular amenities

  • Air-conditioning
  • Bar

Explore the area

View in a map
4-796 Kuhio Hwy, Kapaa, HI, 96746
  • Place, Waipouli Beach
    ‪7 min walk‬
  • Place, Coconut Marketplace
    ‪17 min walk‬
  • Place, Lae Nani Beach
    ‪3 min drive‬
  • Airport, Lihue, HI (LIH)
    ‪13 min drive‬

Room options

View all photos for House, 1 Bedroom, Non Smoking (Beach)

A modern living room with a sofa, coffee table, and TV, featuring geometric patterned carpet and blue walls.

House, 1 Bedroom, Non Smoking (Beach)

  • Sleeps 4
  • 1 King Bed

View all photos for Suite, 1 Bedroom, Non Smoking, Ocean View

Laptop workspace, blackout curtains, Internet, bed sheets

Suite, 1 Bedroom, Non Smoking, Ocean View

  • Sleeps 4
  • 1 King Bed

View all photos for Deluxe Room, 1 King Bed, Non Smoking, Ocean View

A hotel room with a large bed, a desk, a chair, a television, and a window with a view of the outdoors.

Deluxe Room, 1 King Bed, Non Smoking, Ocean View

  • Sleeps 4
  • 1 King Bed

View all photos for Room, 1 King Bed, Non Smoking, Ocean View

Room, 1 King Bed, Non Smoking, Ocean View | Laptop workspace, blackout curtains, Internet, bed sheets

Room, 1 King Bed, Non Smoking, Ocean View

  • Sleeps 3
  • 1 King Bed

View all photos for Room, 1 King Bed, Non Smoking, Oceanfront

Room, 1 King Bed, Non Smoking, Oceanfront | Laptop workspace, blackout curtains, Internet, bed sheets

Room, 1 King Bed, Non Smoking, Oceanfront

  • Sleeps 3
  • 1 King Bed

View all photos for Room, 1 King Bed, Non Smoking, Partial Sea View (Pool View)

A hotel room with a bed, a TV, a ceiling fan, and a view of the outdoors.

Room, 1 King Bed, Non Smoking, Partial Sea View (Pool View)

9.0 out of 10
Wonderful
(2 reviews)
  • Sleeps 3
  • 1 King Bed

View all photos for Premium Room, 1 King Bed, Non Smoking, Oceanfront

A hotel room with a large bed, a TV, a wooden dresser, and a balcony with a view of the ocean.

Premium Room, 1 King Bed, Non Smoking, Oceanfront

  • Sleeps 3
  • 1 King Bed

View all photos for Deluxe Room, 2 Double Beds, Non Smoking, Ocean View

A hotel room with a large bed, a desk, a chair, a mirror, and a view of the outdoors.

Deluxe Room, 2 Double Beds, Non Smoking, Ocean View

  • Sleeps 4
  • 2 Double Beds

View all photos for Room, 2 Double Beds, Non Smoking, Ocean View

A hotel room with two beds, a desk with a TV, a ceiling fan, and a wall with a palm tree painting.

Room, 2 Double Beds, Non Smoking, Ocean View

  • Sleeps 4
  • 2 Double Beds

View all photos for Room, 2 Double Beds, Non Smoking, Oceanfront

A hotel room with two beds, a television, a desk, and a ceiling fan.

Room, 2 Double Beds, Non Smoking, Oceanfront

  • Sleeps 4
  • 2 Double Beds

View all photos for Room, 2 Double Beds, Non Smoking, Partial Sea View (Pool View)

A modern hotel room with a bathroom, a large mirror, a bed, a desk, and a view of the outdoors.

Room, 2 Double Beds, Non Smoking, Partial Sea View (Pool View)

  • Sleeps 4
  • 2 Double Beds

View all photos for Premium Room, 2 Double Beds, Non Smoking, Oceanfront

A modern hotel room with a kitchenette, a large mirror, a bathroom with a bathtub and toilet, and a view of the ocean through the balcony.

Premium Room, 2 Double Beds, Non Smoking, Oceanfront

  • Sleeps 4
  • 2 Double Beds

Run Of House

  • Sleeps 2
  • 1 Double Bed

1 King Bed, 1-Bedroom Beach House, Non-Smoking

  • Sleeps 4
  • 1 King Bed

Room

  • Sleeps 8

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About this property

THE ISO HOTEL, Trademark Collection by Wyndham

At THE ISO HOTEL, Trademark Collection by Wyndham, relax by an outdoor pool or hit the beach where you can enjoy snorkelling.
THE ISO HOTEL, Trademark Collection by Wyndham offers 78 air-conditioned accommodations with free toiletries and a ceiling fan. Rooms open to balconies. 42-inch flat-screen televisions come with cable channels. Guests can make use of the in-room fridges and coffee/tea makers. Bathrooms include a combined bath/shower unit.
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 that 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 such as 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
  • On-site recreation includes yoga classes and bicycles to rent
  • Guests have great things to say about the location and the helpful staff
  • Just a 2-minute drive from Coconut Marketplace and 14 minutes from Kauai Museum
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 specialises in local cuisine and only serves dinner. Guests can enjoy drinks at the bar. Open daily.

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
  • Smoking not allowed
  • 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 and terraces, which may not be suitable for children; if you have any concerns, we recommend contacting the property prior to your arrival to confirm that 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.

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

Rating 10 - Excellent. 489 out of 1002 reviews
Rating 8 - Good. 301 out of 1002 reviews
Rating 6 - Okay. 134 out of 1002 reviews
Rating 4 - Poor. 40 out of 1002 reviews
Rating 2 - Terrible. 38 out of 1002 reviews

8.6/10

Cleanliness

8.6/10

Staff & service

8.0/10

Amenities

8.2/10

Property conditions & facilities

Reviews

Verified

8/10 Good

Natalia

Liked: Cleanliness, staff & service, amenities
View was great
Stayed 6 nights in Mar 2026
Verified

10/10 Excellent

Serena

Liked: Staff & service
Disliked: Amenities
Breakfast was super simple grab an go staff award one parking great ! Not a ton to do at the hotel itself
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

Beauregard

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Very clean room, the grounds were well maintained, staff very helpful.
Stayed 2 nights in Mar 2026
Verified

10/10 Excellent

Tanner R

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The room, the view and staff were all great. Only stayed 3 nights, but was a good chill spot during our stay.
Stayed 3 nights in Feb 2026
Verified

10/10 Excellent

Jiao

Liked: Cleanliness, staff & service, amenities
Great ocean view, healthy breakfast, friendly stuff, clean rooms, convenient location
Stayed 4 nights in Jan 2026
Verified

10/10 Excellent

Alexa

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The room and all the area are very clean. The staff are very nice especially the people who are assigned at cleaning and doing laundry they always have a huge smile and always greets us warmly.
Stayed 6 nights in Apr 2026
Verified

10/10 Excellent

Jennifer

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The ISO is amazing to stay at while visiting Kauai. Fresh fruit and snacks daily, the ocean views, pool fun and close to shops. The staff is incredible. The best was being able to watch the whales from our room. Second year in a row for us and can't wait to return.
Stayed 9 nights in Mar 2026
Verified

8/10 Good

Lisa

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful ocean view, especially on full moon nights
Stayed 4 nights in Mar 2026
Verified

8/10 Good

Scot

Liked: Cleanliness, staff & service
Not a bad place for the price. Seemed pretty clean, parts of the building we’re undergoing a renovation Good location on the beach
Stayed 6 nights in Mar 2026
Verified

10/10 Excellent

Jill

Liked: Cleanliness, amenities, property conditions & facilities
Incredible location. Very kind staff!
Stayed 10 nights in Feb 2026
Verified

10/10 Excellent

Karl

Liked: Cleanliness, amenities, property conditions & facilities
Room was clean and staff were exceptional ! Mahalo !
Stayed 2 nights in Feb 2026
Verified

10/10 Excellent

Kathleen

Liked: Cleanliness, amenities, property conditions & facilities
Staff was great.
Stayed 11 nights in Feb 2026
Verified

10/10 Excellent

Jeffrey H

Liked: Cleanliness, amenities, property conditions & facilities
Everything from check-in to check-out, the staff, the property, the location, the view, everything was amazing.
Stayed 4 nights in Jan 2026
Verified

8/10 Good

Beatrix

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The grounds are stunning, the pool was well maintained and ocean views are breathtaking. The staff were attentive and helpful. The rooms are comfortable and clean. The location is great if you are planning to spend time on the north and south shores, helps reduce driving times if you are planning to be very active!
Stayed 4 nights in Mar 2026
Verified

10/10 Excellent

Serhii

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Everything was nice! Clean room and good view
Stayed 2 nights in Mar 2026
Verified

8/10 Good

Matthew

Liked: Cleanliness, amenities, property conditions & facilities
Convenient location and great views
Stayed 5 nights in Jan 2026
Verified

6/10 Okay

Laurie

The p
Stayed 5 nights in Apr 2026
Verified

10/10 Excellent

blake

Liked: Cleanliness, amenities, property conditions & facilities
Rooms were clean staff (except for one old lady that came in) was fantastic.
Stayed 1 night in Feb 2026
Verified

10/10 Excellent

George N

Liked: Cleanliness, amenities, property conditions & facilities
Yes it was clean and staff was very helpful an friendly.
Stayed 6 nights in Feb 2026
Verified

8/10 Good

Sean

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Most of the staff was good. The rooms i beleave were going thru some renovations but all in all, not a bad stay
Stayed 2 nights in Mar 2026
Verified

8/10 Good

MasaYasu

Liked: Cleanliness, staff & service
Ocean view from both the front door and lanai
Stayed 4 nights in Mar 2026
Verified

8/10 Good

Ariana

Liked: Amenities
The staff was very accommodating! And the location was great.
Stayed 7 nights in Jan 2026
Verified

10/10 Excellent

Hai

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Really enjoyed our stay! Such a beautiful place.
Stayed 2 nights in Nov 2025
Verified

10/10 Excellent

Catherine

The ISO size, customer service, and location are its best qualities
Stayed 5 nights in Jan 2026
Verified

10/10 Excellent

Stephen

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Everything worked out great! Couldn’t have been happier with Travelocity!;)
Stayed 7 nights in Feb 2026