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The ISO by Castle

3.5 star property

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your current months are December, 2024 and January, 2025.
December 2024
January 2025

Photo gallery for The ISO by Castle

Outdoor pool
Beach House Suite (2nd floor Stair Access Only) | Balcony view
Ocean View Suite (2nd floor Stair Access Only) | Living room | 42-inch flat-screen TV with cable channels, TV
Room, Ocean View (1-3rd - Upper floors Stair Access Only) | Blackout drapes, Internet, bed sheets
Ocean View Suite (2nd floor Stair Access Only) | Private kitchenette | Fridge, coffee/tea maker

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 Oceanfront (1st to 3rd - Upper floors Stair Access Only)

Oceanfront (1st to 3rd - Upper floors Stair Access Only) | Blackout drapes, Internet, bed sheets

Oceanfront (1st to 3rd - Upper floors Stair Access Only)

  • 280 sq ft
  • Ocean view
  • Sleeps 3
  • 2 Double Beds OR 1 King Bed

View all photos for Deluxe Ocean View (2nd floor Stair Access Only)

Deluxe Ocean View (2nd floor Stair Access Only) | Blackout drapes, Internet, bed sheets

Deluxe Ocean View (2nd floor Stair Access Only)

  • 290 sq ft
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed OR 2 Double Beds

View all photos for Room, Ocean View (1-3rd - Upper floors Stair Access Only)

Room, Ocean View (1-3rd - Upper floors Stair Access Only) | Blackout drapes, Internet, bed sheets

Room, Ocean View (1-3rd - Upper floors Stair Access Only)

  • 280 sq ft
  • 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 | 42-inch flat-screen TV with cable channels, TV

Beach House Suite (2nd floor Stair Access Only)

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

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

Ocean View Suite (2nd floor Stair Access Only) | Private kitchenette | Fridge, coffee/tea maker

Ocean View Suite (2nd floor Stair Access Only)

  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

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About this property

The ISO by Castle

3.5-star Kapaa resort with restaurant
At The ISO by Castle, relax by an outdoor pool or hit the beach where you can enjoy snorkeling.
The ISO by Castle offers 78 air-conditioned accommodations with complimentary toiletries and ceiling fans. Rooms open to balconies. 42-inch flat-screen televisions come with cable channels. Guests can make use of the in-room refrigerators and coffee/tea makers. Bathrooms include shower/tub combinations.
Recreational amenities at the resort include an outdoor pool.

The recreational activities listed below are available either on site or nearby; fees may apply.

The resort offers a restaurant. A bar/lounge is on site where guests can unwind with a drink. This beach resort also offers an outdoor pool, a garden, and a water dispenser.

The ISO by Castle is a smoke-free property.

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

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
  • Snorkeling
  • Yoga classes

Family friendly

  • In-room refrigerator
  • Outdoor pool

Conveniences

  • Limited-hour front desk
  • Water dispenser

Outdoors

  • Garden
  • On the beach

Accessibility

  • No elevator

More

  • 3 floors
  • 5 buildings
  • Smoke-free property
  • Water dispenser usage encouraged

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

Pets not allowed

Children and extra beds

Children are welcome
Rollaway/extra beds are not available

Property payment types

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • 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 have included all charges provided to us by the property.

Optional extras

  • Late check-out is available for a fee (subject to availability)

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

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

We should mention

This property does not have elevators
Only registered guests are allowed in the 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

The ISO by Castle Reviews

Reviews

8.4

Very Good

Rating 10 - Excellent. 453 out of 1000 reviews" "
Rating 8 - Good. 361 out of 1000 reviews" "
Rating 6 - Okay. 118 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

8/10 Good

Jovan, Tampa

Traveled 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

Traveled 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 traveler

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

8/10 Good

john

Traveled 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 traveler

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

10/10 Excellent

David

Traveled 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

6/10 Okay

Danny

Traveled with partner
Liked: Cleanliness
Disliked: Staff & service, amenities, property conditions & facilities
Likes: ocean view from the rooms, centrally located between North and South points of interest on the island, proximity to shopping and eateries. Dislikes: only restaurant on grounds opens late afternoon, pool needs better lighting and repairs, hotel is old and dated. We made reservations 2 months in advance for our honeymoon for a weeks stay and a special request for ground level room and king sized bed (which we specifically reserved), and were ignored. We were instead told to "just push the 2 full sized beds together" on our 2nd floor room. I overheard other guests with similar concerns which were also ignored in favor of other guests staying shorter periods of time. Even after requesting a room change the next day and explaining my wife's difficulty going up stairs, we were told that we could move to the 3rd floor room with a king sized bed or stay in our current room. The lack of consideration for special requests and customer service has lots of room for improvement.
Stayed 7 nights in Aug 2024

4/10 Poor

Lisa

Traveled with group
Disliked: Staff & service, amenities, property conditions & facilities
Property is old and rundown. Room was hot, clear AC wasn’t working properly.
Stayed 5 nights in Aug 2024

8/10 Good

Desiree

Liked: Staff & service
Stayed 7 nights in Aug 2024

8/10 Good

Jerome

Liked: Cleanliness, property conditions & facilities
Stayed 3 nights in Aug 2024

10/10 Excellent

Sandra

Liked: Cleanliness, staff & service, property conditions & facilities
Kind, helpful staff. Nice pool, cold breakfast and yoga!
Stayed 4 nights in Aug 2024

6/10 Okay

Frances

Liked: Staff & service
Stayed 2 nights in Aug 2024

6/10 Okay

Geoffrey

Traveled with partner
Liked: Cleanliness, staff & service
Beautiful grounds. Room a little bit dirty and out dated.
Stayed 6 nights in Aug 2024

10/10 Excellent

NATALIE, HIALEAH

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Property has nice view the rooms and bathroom have been remodeled. Continental breakfast I good!
Stayed 4 nights in Jul 2024

6/10 Okay

Tonette

Liked: Cleanliness, property conditions & facilities
Disliked: Staff & service
We forgot one of the pair of shoes inside room during check out. Surely, it was just under the bed. We cant even retrieve the shoes. Crazy!
Stayed 2 nights in Jul 2024

6/10 Okay

Claudia

Traveled with partner
Liked: Cleanliness, property conditions & facilities
Had a pleasant enough stay
Stayed 3 nights in Jul 2024

10/10 Excellent

Roberto E

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Easy parking
Stayed 2 nights in Aug 2024

8/10 Good

Ourleah

Traveled with partner
Liked: Cleanliness, amenities
When you arrive at the hotel, the front desk looked like two old military desks and could’ve been way more inviting with Hawaiian music playing instead of the modern rock that was playing. We arrived early and it would have been nice to have a safe place to store luggage while you wait for your room. The walking path and bike path allows you to walk and bike to shopping. There are free bikes that you can pick up at the hotel. Most of the hotel staff was great however, the very first person we came into contact with and one that we came into contact most did not have that aloha spirit and seemed to be grumpy most of the time, The pool area was nice, but the outside planters weren’t planted, and there was no little bar anyway to buy drinks to have by the pool bushes. The patio furniture was kind of old and thread bear. Overall was a very nice place. A nice quiet neighborhood. The rooms were clean and comfortable.
Stayed 5 nights in Jul 2024

8/10 Good

Yuridia

Stayed 4 nights in Jul 2024

10/10 Excellent

Clara

Liked: Cleanliness, staff & service, property conditions & facilities
Disliked: Amenities
Beautiful ocean view
Stayed 3 nights in Jul 2024