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The ISO by Castle

3.5 star property
Beachfront, with outdoor pool

Photo gallery for The ISO by Castle

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

Reviews

8.4 out of 10
Very good

Popular amenities

  • Bar
  • Air conditioning
The current price is AU$487
includes taxes & fees
18 May - 19 May

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 curtains, Internet, bed sheets

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

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Shower/bath combination
  • 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)

Highlights

Balcony
Separate sitting area
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
  • 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)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Shower/bath combination
  • 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)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Shower/bath combination
  • 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)

Highlights

Balcony
Separate dining area
Separate sitting area
Air conditioning
Free cots/infant beds
Kitchen
Fridge
Dishwasher
  • 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)

Highlights

Balcony
Separate dining area
Separate sitting area
Air conditioning
Free cots/infant beds
Kitchenette
Fridge
Flat-screen TV
  • 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)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Shower/bath combination
  • Ocean view
  • 27 sq m
  • Sleeps 3
  • 1 King Bed

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Sheraton Kauai Coconut Beach Resort

Waipouli
  • Pool
  • Hot tub
  • Kids pool
  • Parking included
4.3 out of 5, Excellent, 932 reviews
The price is AU$668
includes taxes & fees
25 May - 26 May
Sheraton Kauai Coconut Beach Resort

About the area

Kapaa

At The ISO by Castle you'll be within a 20-minute stroll of Waipouli Beach and Coconut Marketplace. Highlights at this beachfront resort include a restaurant, an outdoor swimming pool and a bar/lounge. .The restaurant, The Bullshed Restaurant, serves local cuisine and is open for dinner. Spend the day at the beach where you'll find snorkelling. Additionally, you'll find a garden and a water dispenser. .With a stay at this 3.5-property class Waipouli resort, you'll be 13.8 km (8.5 mi) from Nawiliwili Harbor.
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, HI (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

Beachfront, 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 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.

Languages

English

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  • Pool
  • Air conditioning
  • Bar
  • Laundry
4.3 out of 5, Excellent, 1,008 reviews
The price is AU$410
includes taxes & fees
6 May - 7 May
Aston Islander on the Beach

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

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

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

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 all 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

Frequently asked questions

What is the cancellation policy at The ISO by Castle?

The ISO by Castle offers free cancellation on select room rates. Check out the cancellation policy for more info.

How much does it cost to stay at The ISO by Castle?

As of 27 Apr 2025, prices found for a 1-night stay for 2 adults at The ISO by Castle on 18 May 2025 start from AU$431.80, including taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Are there any beaches close to The ISO by Castle?

Yep, The ISO by Castle is a short 10-minute walk from Waipouli Beach. Fun beach activities include snorkelling.

Does The ISO by Castle have a pool?

Yep, and guests love it! The ISO by Castle has a pool.

What makes The ISO by Castle a romantic place to stay?

Beachfront dining and a lounge bar, as well as private balconies in the guestrooms, all help set the scene for a romantic weekend at The ISO by Castle.

Is there a free airport shuttle available at The ISO by Castle?

No, The ISO by Castle does not offer an airport shuttle service.

Is there a bar or restaurant at The ISO by Castle?

Yep, they've got a lounge bar and an onsite restaurant that serves local cuisine. Pre dinner cocktails anyone?

What time are check-in & check-out at The ISO by Castle?

Check-in begins at 3:00 PM. Check-out time is 11 AM.

Are pets allowed at The ISO by Castle?

No, pets are not allowed.

The ISO by Castle Reviews

Reviews

8.4

Very good

Rating 10 - Excellent. 466 out of 1000 reviews
Rating 8 - Good. 351 out of 1000 reviews
Rating 6 - Okay. 115 out of 1000 reviews
Rating 4 - Poor. 39 out of 1000 reviews
Rating 2 - Terrible. 29 out of 1000 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

6/10 Okay

Ross

Travelled with partner
Liked: Cleanliness, staff & service
unheated pool, dead hook up for charger, bad coffee, screen door didn't slide, irritating coffee maker, hard pillows, trashcan too small,
Stayed 5 nights in Jan 2025

10/10 Excellent

Sara

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Jan 2025

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