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The ISO by Castle

3.5 star property
3.5-star beachfront resort with outdoor pool

Choose dates to view prices

Photo gallery for The ISO by Castle

Outdoor pool
Ocean View (1st - 3rd Upper Floors)
Beach House Suite (2nd floor) | Balcony view
One Bedroom Ocean View (2nd Floor) | Living room
One Bedroom Ocean View (2nd Floor) | Private kitchenette

Reviews

8.4 out of 10
Very good

Popular amenities

  • Bar
  • Air conditioning

Explore the area

Map
4-796 Kuhio Hwy, Kapaa, HI, 96746
  • Coconut Marketplace
    ‪16 min walk‬
  • Lae Nani Beach
    ‪3 min drive‬
  • Lydgate Beach
    ‪6 min drive‬
  • Lihue, HI (LIH)
    ‪14 min drive‬

Room options

View all photos for Ocean Front View (1st - 3rd Upper Floors)

Laptop workspace, blackout drapes, Internet, bed sheets

Ocean Front View (1st - 3rd Upper Floors)

  • Ocean view
  • 27 sq m
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

View all photos for Ocean View Deluxe Room (2nd Floor)

Ocean View Deluxe Room (2nd Floor) | Living area

Ocean View Deluxe Room (2nd Floor)

  • Ocean view
  • 27 sq m
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed OR 2 Double Beds

View all photos for Partial Ocean/Pool View (1st - 2nd Upper Floors)

Partial Ocean/Pool View (1st - 2nd Upper Floors) | View from room

Partial Ocean/Pool View (1st - 2nd Upper Floors)

  • Partial ocean view
  • 27 sq m
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

View all photos for Ocean View (1st - 3rd Upper Floors)

Ocean View (1st - 3rd Upper Floors)

Ocean View (1st - 3rd Upper Floors)

  • Ocean view
  • 27 sq m
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

View all photos for Beach House Suite (2nd floor)

Beach House Suite (2nd floor) | Living area

Beach House Suite (2nd floor)

  • Ocean view
  • 59 sq m
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed

View all photos for One Bedroom Ocean View (2nd Floor)

One Bedroom Ocean View (2nd Floor) | Private kitchenette

One Bedroom Ocean View (2nd Floor)

  • Ocean view
  • 54 sq m
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

View all photos for Premium Ocean Front View (1st - 3rd Upper Floors, stair access only)

Premium Ocean Front View (1st - 3rd Upper Floors, stair access only)

Premium Ocean Front View (1st - 3rd Upper Floors, stair access only)

  • Ocean view
  • 27 sq m
  • Sleeps 3
  • 1 King Bed

About the area

Kapaa

On the beach.With a stay at this Waipouli resort, you'll be within half a mile (1 km) of Waipouli Beach and 2 miles (3 km) of Coconut Marketplace. Fuji Beach and Kapaa Shopping Center are also within 2 miles (3 km).
View more Resorts in KapaaOpens in a new window

What's nearby

  • Waipouli Beach - 10 min walk - 0.9 km
  • Coconut Marketplace - 16 min walk - 1.3 km
  • Lae Nani Beach - 3 min drive - 1.8 km
  • Lydgate Beach - 6 min drive - 3.8 km
  • Kapa'a Beach Park - 8 min drive - 2.3 km

Getting around

  • Lihue Airport (LIH) - 14 min drive

Restaurants

  • ‪Island Country Markets #93 - ‬16 min walk
  • ‪Starbucks - ‬6 min walk
  • ‪Lava Lava Beach Club - Kauai - ‬3 min drive
  • ‪Tropical Dreams Hawaiian Gourmet Ice Cream - ‬7 min walk
  • ‪Burger King - ‬18 min walk

About this property

The ISO by Castle

3.5-star beachfront resort with outdoor pool
There's a restaurant on site. You can enjoy a drink at the bar/lounge. The ISO by Castle also features an outdoor pool, a garden, and a water dispenser.

This 3.5-star Kapaa resort is smoke free.

  • 78 guestrooms or units
  • 3 levels
  • 5 buildings
  • Front desk (limited hours)
  • Garden
  • No smoking on site
  • Water dispenser
  • Bar or lounge
  • Dining venue
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.

Languages

English

Similar properties

Outdoor pool

Aston Islander on the Beach

  • Pool
  • Air conditioning
  • Bar
  • Laundry
4.3 out of 5, Excellent, 1,008 reviews
The price is CA $271
CA $363 total
includes taxes & fees
May 6 - May 7
Aston Islander on the Beach

Property amenities

Family friendly

  • In-room refrigerator
  • Outdoor pool

Internet

  • Available in all rooms: High-speed internet

Food and drink

  • A bar/lounge
  • A restaurant

Things to do

  • Bicycle rentals
  • Outdoor pool
  • Snorkeling
  • Yoga classes

Accessibility

  • No elevator

Room amenities

Entertainment

  • 42-inch flat-screen TV with cable channels

Bedroom

  • Bedsheets provided
  • Blackout drapes

Bathroom

  • Free toiletries
  • Private bathroom
  • Shower/bathtub combination
  • Towels provided

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

Access methods

Front desk (limited hours)

Pets

  • No pets allowed

Children and extra beds

  • Children are welcome.
  • Rollaway/extra beds are not available.

Property payment types

Important information

Fees

Guests will be asked to pay the following charges at the property:

  • Resort fee: USD 35.38 per accommodation, per night
The resort fee includes:
  • Additional inclusions
  • Fitness/yoga classes
  • Newspaper
  • Parking
  • Self parking
  • WiFi access (may be limited)

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

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
Charges for extra guests may apply and vary according to property policy.
A cash deposit, credit card, or debit card for incidental charges and government-issued photo identification may be required upon check-in.
Special requests are subject to availability at the time of check-in. Special requests can't be guaranteed and may incur additional charges.
    This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession. The tax ID number is W-34434930-01. This property accepts Visa, Mastercard, American Express, Discover, and debit cards. Cash is not accepted. For guests' safety, the property includes a smoke detector in each accommodation.

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 by Castle Reviews

Reviews

8.4

Very good

Rating 10 - Excellent. 465 out of 999 reviews
Rating 8 - Good. 351 out of 999 reviews
Rating 6 - Okay. 115 out of 999 reviews
Rating 4 - Poor. 39 out of 999 reviews
Rating 2 - Terrible. 29 out of 999 reviews

8.8/10

Cleanliness

8.4/10

Staff & service

8.0/10

Amenities

8.4/10

Property conditions & facilities

8.4/10

Eco-friendliness

Reviews

8/10 Good

Elise, Cliffside Park

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Love the ISO. Affordable and nice. Love the bike rentals and the Kapaa coastline.
Stayed 3 nights in Jan 2025

10/10 Excellent

Denise

Travelled with group
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 3 nights in Jan 2025

10/10 Excellent

Ellen

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This was a delightful hotel with a lovely swimming pool and beautiful lawn on which we could relax and look at the ocean.
Stayed 3 nights in Jan 2025

10/10 Excellent

Jose

Travelled with family, Travelled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Stayed 5 nights in Jan 2025

8/10 Good

Linda

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 7 nights in Jan 2025

10/10 Excellent

Eunice

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Very happy with our stay at The ISO —especially the free bike rentals, morning yoga and other amenities. 10/10 would recommend
Stayed 4 nights in Jan 2025

8/10 Good

Frederic

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
Morning yoga was a lovely touch
Stayed 4 nights in Jan 2025

10/10 Excellent

Bev

Travelled with partner
Liked: Cleanliness, staff & service, property conditions & facilities
Right on the ocean. Grab and go breakfast a bonus. Friendly staff.
Stayed 3 nights in Jan 2025

10/10 Excellent

Jonathan

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 4 nights in Jan 2025

10/10 Excellent

Sayyid

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Please Change the coffee maker in each room. It's too old and needs a new one. All other amenities and location were awesome.
Stayed 3 nights in Dec 2024

4/10 Poor

Steven

Disliked: Staff & service
No turn down service
Stayed 9 nights in Dec 2024

10/10 Excellent

Alexi

Travelled with partner
Liked: Staff & service, property conditions & facilities
We had an amazing stay at this property.
Stayed 4 nights in Dec 2024

10/10 Excellent

Deborah

Travelled with family
Liked: Cleanliness, staff & service, room comfort
Stayed 3 nights in Dec 2024

10/10 Excellent

Corey

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Really enjoyed my stay at The ISO...I really love the bikes...I just wish they had a washer and dryer, maybe 2 of each...Great stay
Stayed 4 nights in Dec 2024

8/10 Good

Diane

Liked: Staff & service
I needed a last minute place to stay that was comfortable and quiet. The grassy area is nice with a lot of palm trees, pool and ocean facing chairs. The staff was friendly and helpful. The lock on my sliding glass door was broken. In Kauai you are rarely in your hotel room so this is a good, affordable choice. You can walk to a big grocery store and to a natural food store. Tiki tacos is nearby and delicious.
Stayed 4 nights in Jan 2025

8/10 Good

Yebin

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Solid choice in Kauai!

Great ocean view and super close access to the beach! Very clean and quiet room!
Stayed 3 nights in Dec 2024

6/10 Okay

Jeane

Travelled with family
Disliked: Property conditions & facilities
We thought the hotel was very tired although they advertise as being renovated.
Stayed 4 nights in Dec 2024

8/10 Good

Chukwuemeka

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The location was good. While it is an older property, it was clean and comfortable. Free grab and go breakfasts were great and a big cost saver. While no gym, daily yoga classes were lovely
Stayed 3 nights in Dec 2024

8/10 Good

Yanxin

Liked: Cleanliness, staff & service, property conditions & facilities
The location is great.
Stayed 4 nights in Dec 2024

4/10 Poor

Dawn

Travelled with group
Liked: Staff & service
Disliked: Cleanliness, amenities, property conditions & facilities
I booked for a week and had to ask to ask to move to a different room as soon as I got to the room because each strongly smelled of mildew. The staff was very helpful but I ended up staying in the 3rd place one night (since I had to pay for it) and then booked another location in the same area and had a wonderful vacation.
Stayed 6 nights in Dec 2024

10/10 Excellent

Verified traveller

Travelled with group
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 3 nights in Dec 2024

10/10 Excellent

Robert

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Sep 2024

10/10 Excellent

Geoffrey

Business traveller
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff and the room was the best
Stayed 2 nights in Oct 2024

8/10 Good

James Lee

Stayed 4 nights in Dec 2024

6/10 Okay

MIGIROV

Liked: Staff & service
Stayed 4 nights in Dec 2024