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The ISO by Castle

3.5 star property
Kapaa beachfront resort with outdoor pool and restaurant

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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
Room, Ocean View (1-3rd - Upper floors Stair Access Only)
Ocean View Suite (2nd floor Stair Access Only) | Private kitchenette
Beach House Suite (2nd floor Stair Access Only) | Balcony view
Ocean View Suite (2nd floor Stair Access Only) | Living room

Reviews

8.4 out of 10

Very good

Popular amenities

  • Bar
  • Pool
  • Air conditioning
  • Non-smoking
  • Restaurant

Main amenities (9)

  • On the beach
  • Restaurant and bar/lounge
  • Outdoor pool
  • Air conditioning
  • Garden
  • Water dispenser
  • Limited hour front desk
  • Snorkeling
  • Bike rental

Feel at home (6)

  • Refrigerator
  • Private bathroom
  • Television
  • Garden
  • Coffee/tea maker
  • Blackout drapes/curtains
The price is CA $467
CA $1,113 total
includes taxes & fees
Dec 24 - Dec 25

Room options

Available filters for rooms
Showing 5 of 5 rooms

View all photos for Oceanfront (1st to 3rd - Upper floors Stair Access Only)

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

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

Highlights

Balcony
Air conditioning
Free cribs/infant beds
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/curtains
Private bathroom
  • 26 sq m
  • 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)

Deluxe Ocean View (2nd floor Stair Access Only)

Highlights

Balcony
Air conditioning
Free cribs/infant beds
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/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 Room, Ocean View (1-3rd - Upper floors Stair Access Only)

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

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

Highlights

Balcony
Air conditioning
Free cribs/infant beds
Refrigerator
Flat-screen TV
Ceiling fan
Blackout drapes/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 cribs/infant beds
Kitchen
Refrigerator
Dishwasher
Flat-screen TV
Blackout drapes/curtains
  • 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

Ocean View Suite (2nd floor Stair Access Only)

Highlights

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

Similar properties

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Pool
Connecting rooms available
Air conditioning
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8.6 out of 10, Excellent, (1009)
The price is CA $303
CA $403 total
includes taxes & fees
Dec 23 - Dec 24
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 Airport (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 travelers love the pool and helpful staff.

Languages

English

At a glance

Hotel size

  • 78 units
  • Arranged over 3 floors

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

Restrictions related to your trip

  • Check COVID-19 restrictions

Special check-in instructions

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

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

Pets

  • Pets not allowed

Other information

  • Smoke-free property

Property amenities

Food and drink

  • Restaurant
  • Bar/lounge
  • Water dispenser

What to do

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

Services

  • Front desk (limited hours)
  • Bicycle rentals

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 drapes/curtains
  • Bed sheets provided

What to enjoy

  • Balcony

Freshen up

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

Food and drink

  • Refrigerator

Special features

Dining

The Bullshed Restaurant - This beachfront restaurant specializes in local cuisine and serves dinner only. 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 check-out. 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 elevators.
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 to 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 snorkeling. Additional recreation onsite 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. Travelers 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

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

10/10 Exceptional

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

10/10 Exceptional

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

10/10 Exceptional

My wife particularly loves the 0700-0800 professionally led yoga sessions.
Robert, 1-night trip
Verified Hotels.com guest review

10/10 Exceptional

6-night trip
Verified Hotels.com guest review

8/10 Very good

Can’t say much
john, 1-night family trip
Verified Expedia guest review

8/10 Very good

The only thing was the bar sucked.
Leland, 5-night trip
Verified Expedia guest review

10/10 Exceptional

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

10/10 Exceptional

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.
David, 3-night family trip
Verified Expedia guest review

6/10 Good

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.
Danny, 7-night romance trip
Verified Expedia guest review

4/10 Fair

Property is old and rundown. Room was hot, clear AC wasn’t working properly.
Lisa, 5-night trip with friends
Verified Expedia guest review

8/10 Very good

Desiree, 7-night trip
Verified Hotels.com guest review

8/10 Very good

Jerome, 3-night trip
Verified Expedia guest review

10/10 Exceptional

Kind, helpful staff. Nice pool, cold breakfast and yoga!
Sandra, 4-night trip
Verified Expedia guest review

6/10 Good

Frances, 2-night trip
Verified Expedia guest review

6/10 Good

Beautiful grounds. Room a little bit dirty and out dated.
Geoffrey, 6-night romance trip
Verified Expedia guest review

10/10 Exceptional

Property has nice view the rooms and bathroom have been remodeled. Continental breakfast I good!
NATALIE, 4-night romance trip
Verified Expedia guest review

6/10 Good

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!
Tonette, 2-night trip
Verified Expedia guest review

6/10 Good

Had a pleasant enough stay
Claudia, 3-night romance trip
Verified Expedia guest review

10/10 Exceptional

Easy parking
Roberto E, 2-night trip
Verified Expedia guest review