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The ISO by Castle

3.5 star property
Beachfront resort in Kapaa with outdoor pool, restaurant

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Photo gallery for The ISO by Castle

Outdoor pool
One Bedroom Ocean View (2nd Floor) | Private kitchenette | Fridge, coffee/tea maker
Exterior
Beach House Suite (2nd floor) | Balcony view
Ocean View (1st - 3rd Upper Floors) | 1 bedroom, laptop workspace, blackout curtains, Internet
Bask in the sun at The ISO by Castle, a beachfront resort with white sand shores and crystal-clear waters. Enjoy snorkeling, an outdoor pool, bike rentals and a refreshing water dispenser.

Reviews

8.4 out of 10
Very good

Popular amenities

  • Bar
  • Air conditioning
  • Non-smoking

Main amenities (9)

  • On the beach
  • Restaurants and bar/lounge
  • Outdoor pool
  • Air conditioning
  • Garden
  • Water dispenser
  • Limited hour front desk
  • Snorkelling
  • Bike hire

Feel at home (6)

  • Fridge
  • Private bathroom
  • Television
  • Garden
  • Coffee/tea maker
  • Blackout curtains
The current price is $239
$317 total
includes taxes & fees
2 Jul - 3 Jul

Room options

Available filters for rooms
Showing 7 of 7 rooms

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

1 bedroom, laptop workspace, blackout curtains, Internet

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

7.8 out of 10
Good
(29 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Separate bedroom
  • 27 sq m
  • Ocean view
  • 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 | 42-inch flat-screen TV with cable channels, TV

Ocean View Deluxe Room (2nd Floor)

7.8 out of 10
Good
(14 reviews)

Highlights

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

10.0 out of 10
Exceptional
(4 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Separate bedroom
  • 27 sq m
  • Partial ocean view
  • 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) | 1 bedroom, laptop workspace, blackout curtains, Internet

Ocean View (1st - 3rd Upper Floors)

8.6 out of 10
Excellent
(61 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Separate bedroom
  • 27 sq m
  • Ocean view
  • 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 | 42-inch flat-screen TV with cable channels, TV

Beach House Suite (2nd floor)

10.0 out of 10
Exceptional
(1 review)

Highlights

Balcony
Separate dining area
Separate sitting area
Air conditioning
Free cots/infant beds
Kitchen
Fridge
Dishwasher
  • 59 sq m
  • Ocean view
  • 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 | Fridge, coffee/tea maker

One Bedroom Ocean View (2nd Floor)

9.0 out of 10
Wonderful
(2 reviews)

Highlights

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

1 bedroom, laptop workspace, blackout curtains, Internet

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

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Aston Islander on the Beach

  • Pool
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  • Air conditioning
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8.6 out of 10, Excellent, 1,010 reviews
The price is $218
$185 nightly
$218 total
Total includes taxes and fees
19 Jul - 20 Jul
Aston Islander on the Beach
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About the area

Map
4-796 Kuhio Hwy, Kapaa, HI, 96746

What's nearby

  • Waipouli Beach - 3 min walk - 0.3 km
  • Coconut Marketplace - 14 min walk - 1.2 km
  • Lae Nani Beach - 3 min drive - 1.5 km
  • Kapa'a Beach Park - 4 min drive - 2.6 km
  • Lydgate Beach - 5 min drive - 3.0 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

Situated by the ocean, The ISO by Castle is a great choice for a stay in Kapaa. The outdoor pool is a great spot to take a dip, and guests can grab a bite to eat at The Bullshed Restaurant, which serves local cuisine and is open for dinner. Other highlights include a bar/lounge and a garden. Fellow travellers love the pool and helpful staff.

Languages

English

At a glance

DONE

Hotel size

    • 78 units
    • Arranged over 3 floors
DONE

Arriving/Leaving

    • Check-in start time: 3:00 PM; check-in end time: 10:00 PM
    • Minimum check-in age – 18
    • Check-out time is 11 AM
    • Late check-out subject to availability
DONE

Special check-in instructions

    • The front desk is open daily from 7:00 AM - 10:00 PM
    • Front desk staffed during limited hours
DONE

Required at check-in

    • Credit card, debit card or cash deposit required for incidental charges
    • Government-issued photo ID may be required
    • Minimum check-in age is 18
DONE

Pets

    • Pets not allowed
DONE

Other information

    • Smoke-free property

Property amenities

Food and drink

  • Restaurant
  • Bar/lounge
  • Water dispenser

What to do

  • On the beach
  • Yoga classes
  • Snorkelling
  • Golfing nearby

Services

  • Front desk (limited hours)
  • Bike hire

Facilities

  • 5 buildings/towers
  • Garden
  • An outdoor pool
  • Water dispenser

Room amenities

Be entertained

  • 42-inch flat-screen TV
  • Cable TV channels

Home comfort

  • Air conditioning
  • Ceiling fan
  • Coffee/tea maker

Sleep well

  • Blackout curtains
  • Bed sheets provided

What to enjoy

  • Balcony

Freshen up

  • Private bathroom
  • Shower/bath combination
  • Free toiletries
  • Towels

Stay connected

  • Laptop-friendly workspace

Food and drink

  • Fridge

Special features

Dining

The Bullshed Restaurant – This beachfront restaurant specialises in local cuisine and only serves dinner. Guests can enjoy drinks at the bar.

Fees & policies

Mandatory fees

You'll be asked to pay the following charges by the property at check-in or checkout. Fees may include applicable taxes:
  • Resort fee: USD 35.38 per accommodation, per night
  • Resort fee inclusions:
    • Additional inclusions
    • Fitness/yoga classes
    • Newspaper
    • Parking
    • Self-parking
    • WiFi access (may be limited)

Optional extras

  • Late check-out can be arranged for an extra charge (subject to availability)

Policies

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.
Only registered guests are allowed in the guestrooms.
This property does not have lifts.
Guests can rest easy knowing that there's a smoke detector on-site.
This property accepts credit cards and debit cards. Cash is not accepted.
Credit cards accepted: Visa, Mastercard, American Express, Discover
State tax ID – W-34434930-01

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

Does The ISO by Castle offer free cancellation for a full refund?

Yes, The ISO by Castle does have fully refundable room rates available to book on our site. If you’ve booked a fully refundable room rate, this can be cancelled up to a few days before check-in, depending on the property's cancellation policy. Just make sure that you check this property's cancellation policy for the exact terms and conditions.

Is there a pool at The ISO by Castle?

Yes, there's an outdoor pool.

Are pets allowed at The ISO by Castle?

Sorry, pets aren't allowed.

What are the check-in and check-out times at The ISO by Castle?

Check-in start time: 3:00 PM; check-in end time: 10:00 PM. Check-out time is 11 AM. Late check-out is available for a charge (subject to availability).

What is there to do at The ISO by Castle and nearby?

Have fun during the warmer months with activities such as snorkelling. Additional recreation on-site includes yoga. Enjoy a swim in the outdoor pool or use the resort's other amenities, which include a garden.

Are there restaurants at or near The ISO by Castle?

Yes, The Bullshed Restaurant offers beachfront dining and local cuisine.

Does The ISO by Castle have any outdoor private spaces?

Yes, every room features a balcony.

What's the area around The ISO by Castle like?

The ISO by Castle is a short 10-minute walk from Waipouli Beach and 16 minutes' walk from Coconut Marketplace. Travellers give top marks for the resort's prime location.

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The ISO by Castle Reviews

Reviews

8.4

Very good

8.8/10

Cleanliness

8.4/10

Staff & service

8.0/10

Amenities

8.4/10

Property conditions & facilities

8.4/10

Eco-friendliness

Popular mentions

Room
Service staff
Location
View
Ocean
Restaurant
Breakfast
Beach
Ocean view
Biking

What guests liked

  • The property's beach location offers stunning ocean views, direct access, and a beautiful beachfront setting. (38 reviews)
  • The pool was a lovely and inviting feature, often quiet and well-maintained with beautiful surroundings. (23 reviews)
  • The on-site restaurant served good food, and the nearby steakhouse, Bull Shed, was outstanding with amazing cocktails and food. (4 reviews)
AI Sparkle IconFrom real guest reviews summarized by AI.

Reviews

10/10

amazing view nice hotel
4-night trip

10/10

It was just what I needed. Cozy bed, ocean waves lull me to sleep, Bullshed great dinner and a hot shower. Awesome a R&R
1-night trip

8/10

Pleasant stay. Clean and comfortable. Staff was excellent, very accomodating. Beautiful ocean view.
1-night trip

10/10

Great views. Great vibes
1-night trip

8/10

Hotel was nice but a little outdated room was clean liked the grab n go breakfast good location
5-night trip

8/10

Had some trouble with our room after the first night. They upgraded us to a new room with a better view! Grab and run cold breakfast was a great option! Restaurant is a little pricey but the food was excellent.
6-night trip

10/10

Great place
4-night trip

10/10

This was a delightful hotel with a lovely swimming pool and beautiful lawn on which we could relax and look at the ocean.
3-night trip

10/10

We loved that if was so quiet and the ammenities were outstanding. The oceanside room was so relaxing and beautiful sunrise. Highly recommend. We will definatley stay here again. Kuddos to Roberta at the front desk for being helpful.
2-night trip

10/10

Staff super friendly and the breakfast super convenient saves you aome bucks
6-night trip

10/10

Great location and property. AC was a little finicky but overall worth the stay for the price, and the view!
3-night trip

10/10

Staff was so accommodating and helpful. Rooms need updating but property is located on the ocean with awesome views/waves. Shopping/restaurants nearby.
2-night trip

10/10

We really enjoyed our stay at the ISO. The hotel met our needs for our 4 night stay. It is centrally situated so it was easy to explore. Clean rooms, comfortable bed and super friendly staff. Good dinner restaurant on property. Good selection of continental breakfast foods. Amazing sunrises! We would stay again if we come back to Kauai.
Beautiful sunrises
4-night trip

10/10

Close to beach and they have a restaurant in the back!
2-night trip

10/10

Great ocean views
3-night trip

8/10

Great location right on the ocean. Stayed in the older section above the restaurant which was fine however they have music every night from 7 to 8:30. which reverberated up through the room. The food and service at the restaurant, "The Bull Shed" was excellent. Grounds were maintained beautifully.
5-night trip

10/10

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
4-night trip

8/10

Great ocean view and super close access to the beach! Very clean and quiet room!
3-night trip

10/10

Right on the ocean. Grab and go breakfast a bonus. Friendly staff.
3-night trip

8/10

Morning yoga was a lovely touch
4-night trip

10/10

Very good place near the airport
5-night trip

10/10

Yoga on the beach every morning 7-8 was wonderful and the bikes in the lobby were free to use. Ver nice property, I really enjoyed my stay.
2-night trip

10/10

II had a great stay! I didn't realize that my room was above the restaurant that features a band, which I think is amazing. I really enjoyed the music. Additionally, Stacey at the front desk was very kind and helped me print something without hesitation.
4-night trip

8/10

The pool and grounds were wonderful. Free continental breakfast - especially for fresh arrivals - was a hugely appreciated. The free bikes were also a terrific treat, especially as the oceanside bike path is just around the corner
1-night trip

10/10

Stunning views great service and extremely convenient and affordable
4-night trip