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The ISO by Castle

3.5 star property
Beachfront, with outdoor pool
your current months are February, 2025 and March, 2025.
February 2025
March 2025

Photo gallery for The ISO by Castle

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

Reviews

8.4 out of 10
Very good

Popular amenities

  • Bar
  • Air conditioning
  • Pool
  • Restaurant

Explore the area

Map
4-796 Kuhio Hwy, Kapaa, HI, 96746
  • Waipouli Beach
    ‪10 min walk‬
  • Coconut Marketplace
    ‪16 min walk‬
  • Fuji Beach
    ‪16 min walk‬
  • Lihue, HI (LIH)
    ‪14 min drive‬

Room options

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)

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)

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)

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)

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)

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
Air conditioning
Bar
Laundry
4.3 out of 5, Excellent, (1008)
The price is AU$693
for 1 room
includes taxes & fees
13 Feb - 14 Feb
Aston Islander on the Beach

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. .Within a 20-minute drive of this 3.5-property class Kapaa resort, attractions include Nawiliwili Harbor and Nawiliwili Bay.
View more Resorts in KapaaOpens in a new window

What's nearby

  • Waipouli Beach - 10 min walk
  • Coconut Marketplace - 16 min walk
  • Lae Nani Beach - 3 min drive
  • Lydgate Beach - 6 min drive
  • Kapa'a Beach Park - 8 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

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

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

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
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.

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. 460 out of 1001 reviews" "
Rating 8 - Good. 361 out of 1001 reviews" "
Rating 6 - Okay. 115 out of 1001 reviews" "
Rating 4 - Poor. 38 out of 1001 reviews" "
Rating 2 - Terrible. 27 out of 1001 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

10/10 Excellent

Henry, Honolulu

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in Oct 2024

10/10 Excellent

Justin

Liked: Staff & service, property conditions & facilities
Stunning views great service and extremely convenient and affordable
Stayed 4 nights in Oct 2024

6/10 Okay

James

Travelled with family
The rooms are dated and need upgrading- the grounds and view are beautiful
Stayed 2 nights in Oct 2024

10/10 Excellent

Gaylord

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
view and pool
Great view and pool
Stayed 1 night in Oct 2024

10/10 Excellent

Jennifer L

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 9 nights in Oct 2024

8/10 Good

Shana

Liked: Cleanliness, staff & service, property conditions & facilities
It has a surprising ocean view
Stayed 4 nights in Oct 2024

10/10 Excellent

Ashley

Travelled with family and small children, Travelled with partner
Liked: Property conditions & facilities
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.
Stayed 3 nights in Oct 2024

8/10 Good

Rebeca

Stayed 7 nights in Sep 2024

6/10 Okay

Harry

Liked: Cleanliness, staff & service
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.
Stayed 4 nights in Sep 2024

6/10 Okay

Scott

Travelled with family
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.
Stayed 7 nights in Sep 2024

8/10 Good

Carrie

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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.
Stayed 5 nights in Oct 2024

10/10 Excellent

Erin, Solvang

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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!
Stayed 5 nights in Sep 2024

10/10 Excellent

robert linden

Travelled with group
Liked: Cleanliness, staff & service, property conditions & facilities
Location right on the beach close to shops, halfway between both sides of the
Stayed 6 nights in Sep 2024

10/10 Excellent

Zoraida

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Very satisfied sleep well at night
Stayed 3 nights in Sep 2024

8/10 Good

Jovan, Tampa

Travelled with family
Liked: Cleanliness, staff & service
Disliked: Amenities, property conditions & facilities
Oven wove is great . They need to add at least microwaves in the room.
Stayed 7 nights in Aug 2024

8/10 Good

bob

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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.
Stayed 5 nights in Sep 2024

8/10 Good

Deysse

Liked: Cleanliness, staff & service, property conditions & facilities
Everything was good !
Stayed 4 nights in Sep 2024

8/10 Good

Patrick, Puyallup

Travelled with partner
Liked: Cleanliness, staff & service, amenities
Property was nice. Large expansive lawn to the beach. Rooms were a little dated and small. Service was good, staff awesome.
Stayed 7 nights in Aug 2024

10/10 Excellent

Ed

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Sep 2024

10/10 Excellent

Robert

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
My wife particularly loves the 0700-0800 professionally led yoga sessions.
Stayed 1 night in Sep 2024

10/10 Excellent

Verified traveller

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 6 nights in Aug 2024

8/10 Good

john

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Can’t say much
Stayed 1 night in May 2024

8/10 Good

Leland, Redding

Liked: Cleanliness, staff & service, property conditions & facilities
The only thing was the bar sucked.
Stayed 5 nights in Sep 2024

10/10 Excellent

Verified traveller

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

10/10 Excellent

David

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nice swimming pool and firepit, lounge chairs on lawn oceanside, onsite restaurant and lots of nearby dining and shopping, great walking/bike path with bikes available at the hotel, good 'grab and go' breakfast with tables available if you wanted to eat there. Small refrigerator in room, no microwave.
Stayed 3 nights in Aug 2024