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The ISO by Castle

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

Choose dates to view prices

Photo gallery for The ISO by Castle

Relax by the pool surrounded by palm trees and lounge chairs.
Relax in a covered outdoor space with ocean views, lounge chairs, and a table.
Relax in a spacious living area with a sofa, coffee table, and kitchenette, offering a comfortable space to unwind.
Relax on the large bed with a view of the ocean and palm trees from the balcony.
Enjoy the serene ocean views from this coastal property's lawn, leading to a rocky shoreline.
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 Rp4.892.238
Rp6.349.929 total
includes taxes & fees
1 Sept - 2 Sept

Room options

Available filters for rooms
Showing 7 of 7 rooms

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

Enjoy ocean views from the large bed and balcony, with a flat-screen TV and ceiling fan.

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

7.8 out of 10
Good
(30 reviews)

Highlights

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

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

Relax in this stylish room with a large bed, sofa, and ceiling fan, offering a view of lush greenery through the sliding glass door.

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
Ceiling fan
Separate bedroom
  • 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)

Enjoy breathtaking views of the tropical landscape from this balcony.

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
Ceiling fan
Separate bedroom
Blackout curtains
  • 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)

Relax on the large bed with a view of the ocean and palm trees from the balcony.

Ocean View (1st - 3rd Upper Floors)

8.6 out of 10
Excellent
(62 reviews)

Highlights

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

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

Relax in this Beach House with a comfortable sofa, coffee table, and ocean views.

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
  • 1 bedroom
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed

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

Relax in a spacious living area with a sofa, coffee table, and kitchenette, offering a comfortable space to unwind.

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
  • 1 bedroom
  • 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)

Enjoy ocean views from the large bed and balcony, with a flat-screen TV and ceiling fan.

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

Highlights

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

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  • Pool
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  • Air conditioning
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8.6 out of 10, Excellent, 1,007 reviews
The price is Rp2.820.883
Rp3.849.592 total
includes taxes & fees
24 Aug - 25 Aug
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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
  • Smith's Tropical Paradise - 6 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

8.2/10

Property conditions & facilities

8.4/10

Eco-friendliness

Popular mentions

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

What guests liked

  • The property offers direct access to the beach with stunning ocean views and a beautiful beachfront location. (39 reviews)
  • The pool was great, inviting, and well-maintained, offering a wonderful place to relax and enjoy the surroundings. (25 reviews)
  • The on-site restaurant offered great food and cocktails, with one guest even dining there three times during their stay. (6 reviews)
AI Sparkle IconFrom real guest reviews summarized by AI.

Reviews

10/10 Excellent

It's a very good safe place to stay.
Mengqing, 4-night trip

8/10 Good

Great location, bikes were nice for the bike path, breakfast,grab and go was helpful.. property was older but well kept.
Donna, 4-night trip

10/10 Excellent

Amazing place to stay in Kauai! 10/10 recommend. Friendly staff, prime location, beautiful grounds, clean rooms!
Hayley, 3-night trip

8/10 Good

The staff were very friendly and very accommodating to make our stay enjoyable. Our room was quite comfortable with a kitchen and separate bedroom although there were a few areas needing minor repair and painting.
CHUNMEI XIE VAN, 7-night trip

10/10 Excellent

Our stay was great! The ISO is in a great location within walking distance to several beaches and food options.
Kyle, 2-night trip

6/10 Okay

I like the property it’s close to a beach and nice views and if you want, you could just swim in the pool. Too bad there wasn’t a jacuzzi, but it wasn’t a deal breaker. The room was okay, the bed was comfortable and the room was clean. The restaurant on premises was great! The hotel was close to shopping and places to eat. All in all, it was a great place to stay!
Al, 2-night trip

10/10 Excellent

Great location, friendly staff, good amenities
Celina, 4-night trip

10/10 Excellent

The ISO is a great affordable option to some of the other overblown resorts in the area. Rooms are clean and comfortable, staff is helpful, and the hotel is conveniently located close to some great restaurants and island excursions. While it may not have the bells and whistles of nearby options, it has a pool, a great continental breakfast, and EVERY room is ocean-view.
Brian, 7-night trip

10/10 Excellent

Nothing to dislike like about the stay. Will recommend for friends for certain who want to visit Kauai. Experience was amazing, along with the staff.
Steve, 2-night trip

10/10 Excellent

Great views outside the balcony
DWARAKESH, 3-night trip

10/10 Excellent

Quiet, serene and conveniently located.
Natania Delfin, 3-night trip

8/10 Good

Decent location, very clean rooms and property. Great walking path along the beach and hotels.
Alexandra, 7-night trip

8/10 Good

A little tired the property is, but with free bikes, a pool and great views to the beach- we were satisfied. Breakfast has some fresh fruit, sweet yogurt and bakery items. Staff were hit and miss (afternoon shift was lovely).
Marcus, 3-night trip

6/10 Okay

The property is just old and the rooms are very small for two non married people even though they had two beds. They try hard to keep it clean but remodeling is necessary. All in all it was a good stay
Malcolm, 14-night trip

10/10 Excellent

We love the ISO! The proximity of the ocean, the quiet enjoyment of the phenomenal view, and the sunrise from the rooms are priceless. Great location, friendly stuff, and pleasant stay to enjoy this wonderful island!
Serine, 7-night trip

8/10 Good

Overall I enjoyed my stay. The views were gorgeous. Everything was clean. The pool was great and the beach access there was awesome. All the staff was lovely as well. There were just some maintenance that would really round out the entire experience.
Maitland E, 8-night trip

4/10 Poor

Musty smell in the room. Pillow case smelled as if it wasn't changed. Pictures of the place deceivingly look good. But nothing like it in person. The place looks old. But have to admit price is good, and a good location as a base to visit the north, south and west.
Clifford, 6-night trip

8/10 Good

Overall a positive experience! Comfortable room with beautiful ocean view. Plenty of space for two people, comfortable bed, and we had everything we needed. The area is a bit more commercial but that does come with the convenience of grocery stores and tons of restaurant options. Only downsides were that we were unable to drop off our luggage early and there was somewhat of a mildew smell and mold in the bathroom. Unfortunately this is fairly common is ocean side hotels so not a deal breaker.
Rachel, 2-night trip

4/10 Poor

Very nice location which is walking distance to good reasonable food. Property is very outdated. Not sure why they are called a “resort”. I think it is a stretch in able to ask for the resort fee. Nothing fancy here. If your goal is just to sleep for the night, then it is fine. But if you are after going to the beach, then you are in the wrong place. The beach here is not where you can swim. It is just for the view.
Rommel, 6-night trip

10/10 Excellent

Great views. Great vibes
Andreanna, 1-night trip

8/10 Good

Nice

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

8/10 Good

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

8/10 Good

The breakfast could use a few more selections and a coffee pot. The amenities were unique and nice! The bikes, morning yoga as well as the pool were nice to have! As well as the unique welcoming gifts. The cleanliness of the room was just okay. Noticed lots of dirt that was just missed as well as the room smelled of mildew.
Clint Eric, 6-night trip

10/10 Excellent

Great place
Kevin, 4-night trip

8/10 Good

It was ok. Shower didnr work wekl and couldn't get them to fix it. Continental breakfast was grab and go cold cereal, granola bars, yogurt etc. The pool waz nice
Onell, 5-night trip