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The ISO by Castle

3.5 star property
Kapaa beachfront resort with outdoor pool, restaurant

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your current months are January, 2025 and February, 2025.
January 2025
February 2025

Photo gallery for The ISO by Castle

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

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

Room options

Available filters for rooms
Showing 5 of 5 rooms

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

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

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

7.8 out of 10
Good
(29 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Ceiling fan
Blackout curtains
Private bathroom
  • 26 sq m
  • Ocean view
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

View all photos for Ocean View Deluxe Room (2nd Floor, stair access only)

Ocean View Deluxe Room (2nd Floor, stair access only)

Ocean View Deluxe Room (2nd Floor, stair access only)

8.0 out of 10
Very good
(13 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Ceiling fan
Blackout curtains
Private bathroom
  • 27 sq m
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed OR 2 Double Beds

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

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

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

8.6 out of 10
Excellent
(60 reviews)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Ceiling fan
Blackout curtains
Private bathroom
  • 26 sq m
  • Ocean view
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

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

Beach House Suite (2nd floor Stair Access Only) | Living area

Beach House Suite (2nd floor Stair Access Only)

10.0 out of 10
Exceptional
(1 review)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Kitchen
Fridge
Dishwasher
Flat-screen TV
Ceiling fan
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed

View all photos for One Bedroom Ocean View (2nd Floor, stair access only)

One Bedroom Ocean View (2nd Floor, stair access only) | Private kitchenette

One Bedroom Ocean View (2nd Floor, stair access only)

10.0 out of 10
Exceptional
(1 review)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Kitchenette
Fridge
Flat-screen TV
Ceiling fan
Blackout curtains
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

Similar properties

Outdoor pool

Aston Islander on the Beach

Pool
Connecting rooms available
Air conditioning
Bar
8.6 out of 10, Excellent, (1012)
The price is NZ$483
includes taxes & fees
26 Jan - 27 Jan
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 - 10 min walk
  • Coconut Marketplace - 16 min walk
  • Lae Nani Beach - 3 min drive
  • Smith's Tropical Paradise - 5 min drive
  • Lydgate Beach - 6 min drive

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

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

Only registered guests are allowed in the guestrooms.
This property does not have lifts.
This property accepts credit cards and debit cards. Cash is not accepted.
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.

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

Reviews

10/10 Exceptional

Deborah, 3-night family trip
Verified Hotels.com guest review

8/10 Very good

Solid choice in Kauai!
Great ocean view and super close access to the beach! Very clean and quiet room!
Yebin, 3-night family trip
Verified Hotels.com guest review

6/10 Good

We thought the hotel was very tired although they advertise as being renovated.
Jeane, 4-night family trip
Verified Hotels.com guest review

10/10 Exceptional

3-night trip with friends
Verified Hotels.com guest review

10/10 Exceptional

Robert, 1-night trip
Verified Hotels.com guest review

10/10 Exceptional

Value for money at Ksuai
Very homely
Susmit, 5-night family trip
Verified Hotels.com guest review

8/10 Very good

modest property on the water
good budget accommodation though not at a budget price.
douglas, 6-night trip
Verified Hotels.com guest review

10/10 Exceptional

Maria Luisa, 4-night trip
Verified Hotels.com guest review

10/10 Exceptional

Amazing
Amazing stay . Great service . Great amenities.
Javier, 4-night family trip
Verified Hotels.com guest review

6/10 Good

Rachel, 1-night trip
Verified Hotels.com guest review

10/10 Exceptional

view and pool
Great view and pool
Gaylord, 1-night trip
Verified Hotels.com guest review

8/10 Very good

It has a surprising ocean view
Shana, 4-night trip
Verified Expedia guest review

10/10 Exceptional

If you’re looking for a Hilton or some upscale hotel this isn’t it, but it’s still very nice. We had a large room with a balcony that opened up to an ocean front view (I believe all rooms have this). When you pull up it has more of a motel feel but the room was actually very nice, spacious and had a cozy island feel. It was easy to control the temp in the room and they were able to accommodate a pack and play for my baby which I really appreciated. Free breakfast is offered daily and you can walk across the street to Safeway, the drugstore, starbucks and other shops. It’s also walking distance from some local spots which was hugely convenient for us and we loved having the boardwalk from the beach to the Sheraton Hotel right next to us because we were attending a wedding there just a walk away. We would definitely stay here again.
Ashley, 3-night family trip
Verified Expedia guest review

8/10 Very good

Rebeca, 7-night trip
Verified Expedia guest review

6/10 Good

Property is dated. AC was not working properly during my stay. Room was ok. Clean. But very basic. Small refrigerator. No wine glasses or any basic utensils. Breakfast was a joke, consists of fruit cups if any and apples No hot foods. No fresh baked goods. They could do better than this but they’ll probably raise their prices significantly if they do.
Harry, 4-night trip
Verified Expedia guest review

6/10 Good

Our room was directly above the restaurant which played music every evening from 7 to 9 pm. We could sing along if we wanted to. We were not informed that our room offered this special benefit. The pillows were very firm or very lumpy. The television never worked. The air conditioner remained on continuously at a frigid temperature that the controls could not adjust. The location was great. Breakfast was adequate. Several staff members were helpful. However, we paid for paradise and received numerous torments to overcome.
Scott, 7-night family trip
Verified Expedia guest review

8/10 Very good

A lot of bang for your buck. The property was so reasonably priced. The view is so beautiful. The hotel is older but clean and has a cute vibe. The only complaint is the beds are a little hard.
Carrie, 5-night family trip
Verified Expedia guest review

10/10 Exceptional

On an island so quaint and beautiful that has mega resorts, this small resort checks off so many boxes on my list: Clean - check. Oceanfront - check. Restuarant on site - check. Nice, clean pool - check. Comfy bed - check. Patio with chairs - check. Free parking - check. aT those other mega resorts, you may get a bunch of amenities and foo-foo stuff, but chances are unless you are going to break the bank, your room will be very far from the ocean, and far from all these amenities. This quiant hotel allows EVERY ROOM a view of the ocean, doesn't break the bank, and is centrally located. Would recommend this hotel to anyone!
Erin, 5-night romance trip
Verified Expedia guest review

10/10 Exceptional

Location right on the beach close to shops, halfway between both sides of the
robert linden, 6-night trip with friends
Verified Expedia guest review

10/10 Exceptional

Very satisfied sleep well at night
Zoraida, 3-night trip
Verified Hotels.com guest review

8/10 Very good

Oven wove is great . They need to add at least microwaves in the room.
Jovan, 7-night family trip
Verified Expedia guest review

8/10 Very good

ISO was so close to the ocean, you can walk to the ocean from ISO. The ocean view room was so great and amazing, the breezy was great. The pool was large one side is 8 ft deep. The sunrise was magnificent every morning. Shopping is one block away by walking or driving. Very quiet and relaxing.
bob, 5-night trip
Verified Hotels.com guest review

8/10 Very good

Everything was good !
Deysse, 4-night trip
Verified Expedia guest review

8/10 Very good

Property was nice. Large expansive lawn to the beach. Rooms were a little dated and small. Service was good, staff awesome.
Patrick, 7-night romance trip
Verified Expedia guest review

10/10 Exceptional

Ed, 2-night trip
Verified Hotels.com guest review