See all properties

The ISO by Castle

3.5 star property
Beachfront, with outdoor pool

Choose dates to view prices

Photo gallery for The ISO by Castle

Outdoor pool
Private kitchenette
Balcony view
Laptop workspace, blackout curtains, Internet, bed sheets
Exterior

Reviews

8.4 out of 10
Very good

Popular amenities

  • Bar
  • Air conditioning
  • Pool
  • Restaurant
The current price is S$377
includes taxes & fees
23 Feb - 24 Feb

Room options

Available filters for rooms
Showing 7 of 7 rooms

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

Laptop workspace, blackout curtains, Internet, bed sheets

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

Highlights

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

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

Living area

Ocean View Deluxe Room (2nd Floor)

Highlights

Balcony
Separate sitting area
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
  • 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)

View from room

Partial Ocean/Pool View (1st - 2nd Upper Floors)

Highlights

Balcony
Air conditioning
Free cots/infant beds
Fridge
Flat-screen TV
Blackout curtains
Ceiling fan
Private bathroom
  • 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)

Laptop workspace, blackout curtains, Internet, bed sheets

Ocean View (1st - 3rd Upper Floors)

Highlights

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

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

Living area

Beach House Suite (2nd floor)

Highlights

Balcony
Separate dining area
Separate sitting area
Air conditioning
Free cots/infant beds
Kitchen
Fridge
Dishwasher
  • 59 sq m
  • Ocean view
  • Sleeps 4
  • 1 King Bed and 1 Queen Sofa Bed

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

Private kitchenette

One Bedroom Ocean View (2nd Floor)

Highlights

Balcony
Separate dining area
Separate sitting area
Air conditioning
Free cots/infant beds
Kitchenette
Fridge
Flat-screen TV
  • 54 sq m
  • 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)

Laptop workspace, blackout curtains, Internet, bed sheets

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

Highlights

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

Similar properties

Outdoor pool

Aston Islander on the Beach

  • Pool
  • Air conditioning
  • Bar
  • Laundry
8.6 out of 10, Excellent, 1,011 reviews
The price is S$545
includes taxes & fees
1 Mar - 2 Mar
Aston Islander on the Beach
Mod logo
Sign in to view eligible discounts and perks. More rewards for more adventures!
Sign inSign up, it's free

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
  • 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

Resort by the ocean
Take advantage of a garden, a bar and a restaurant at The ISO by Castle. This resort is a great place to bask in the sun with a white sand beach, beachfront dining and snorkelling.
Other perks at this resort include:
  • An outdoor pool
  • Bike hire, smoke-free property and a water dispenser
  • Guest reviews speak highly of the beach locale, pool and helpful staff
Room features
All 78 rooms feature comforts such as laptop-friendly workspaces and air conditioning, as well as thoughtful touches such as high-speed Internet. Guest reviews speak positively of the cleanliness rooms at the property.
More conveniences in all rooms include:
  • Bathrooms with shower/bath combinations and free toiletries
  • 42-inch flat-screen TVs with cable channels
  • Wardrobes/cupboards, balconies and fridges

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
  • Laptop workspace

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.

Payment types at the property

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 any lifts
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

Frequently asked questions

Does The ISO by Castle have a pool?

Yes, this property has an outdoor pool.

How much does it cost to stay at The ISO by Castle?

As of 22 Feb,2025, prices found for a 1-night stay for 2 adults at The ISO by Castle on 23 Feb,2025 start from S$376.81, including taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Is The ISO by Castle pet-friendly?

No, pets are not allowed at this property.

What time is check-in at The ISO by Castle?

Check-in start time: 3:00 PM; check-in end time: 10:00 PM.

What time is check-out at The ISO by Castle?

Checkout is at 11 AM. Late checkout is available for a fee (subject to availability).

Where is The ISO by Castle located?

Nestled on the beach, this Kapaa resort is within 1 mi (2 km) of Waipouli Beach, Fuji Beach and Lae Nani Beach. Coconut Marketplace and Kapaa Shopping Center are also within 1 mile (2 km).

Have a question?

AI iconBeta

Get instant answers with AI powered search of property information and reviews.

The ISO by Castle Reviews

Reviews

8.4

Very good

Rating 10 - Excellent. 464 out of 1000 reviews
Rating 8 - Good. 356 out of 1000 reviews
Rating 6 - Okay. 114 out of 1000 reviews
Rating 4 - Poor. 38 out of 1000 reviews
Rating 2 - Terrible. 28 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

10/10 Excellent

Alexi

We had an amazing stay at this property.
Stayed 4 nights in Dec 2024

8/10 Good

Yanxin

The location is great.
Stayed 4 nights in Dec 2024

10/10 Excellent

Ellen

This was a delightful hotel with a lovely swimming pool and beautiful lawn on which we could relax and look at the ocean.
Stayed 3 nights in Jan 2025

10/10 Excellent

Laurie

Staff was so accommodating and helpful. Rooms need updating but property is located on the ocean with awesome views/waves. Shopping/restaurants nearby.
Stayed 2 nights in Jan 2025

8/10 Good

Elise

Love the ISO. Affordable and nice. Love the bike rentals and the Kapaa coastline.
Stayed 3 nights in Jan 2025

8/10 Good

Robert

Right on the beach, excellent price
Stayed 4 nights in Nov 2024

10/10 Excellent

MA LAURA ISABEL

II had a great stay! I didn't realize that my room was above the restaurant that features a band, which I think is amazing. I really enjoyed the music. Additionally, Stacey at the front desk was very kind and helped me print something without hesitation.
Stayed 4 nights in Feb 2025

10/10 Excellent

Kevin

Great place
Stayed 4 nights in Nov 2024

10/10 Excellent

Andrew

Great location and property. AC was a little finicky but overall worth the stay for the price, and the view!
Stayed 3 nights in Dec 2024

10/10 Excellent

Corey

Really enjoyed my stay at The ISO...I really love the bikes...I just wish they had a washer and dryer, maybe 2 of each...Great stay
Stayed 4 nights in Dec 2024

8/10 Good

Frederic

Morning yoga was a lovely touch
Stayed 4 nights in Jan 2025

10/10 Excellent

Bev

Right on the ocean. Grab and go breakfast a bonus. Friendly staff.
Stayed 3 nights in Jan 2025

10/10 Excellent

Geoffrey

The staff and the room was the best
Stayed 2 nights in Oct 2024

10/10 Excellent

Hugo

Staff super friendly and the breakfast super convenient saves you aome bucks
Stayed 6 nights in Nov 2024

10/10 Excellent

Bharath Tumkur

Close to beach and they have a restaurant in the back!
Stayed 2 nights in Dec 2024

10/10 Excellent

Eunice

Very happy with our stay at The ISO —especially the free bike rentals, morning yoga and other amenities. 10/10 would recommend
Stayed 4 nights in Jan 2025

10/10 Excellent

Brent

Great ocean views
Stayed 3 nights in Nov 2024

8/10 Good

Michael

The pool and grounds were wonderful. Free continental breakfast - especially for fresh arrivals - was a hugely appreciated. The free bikes were also a terrific treat, especially as the oceanside bike path is just around the corner
Stayed 1 night in Dec 2024

8/10 Good

Chukwuemeka

The location was good. While it is an older property, it was clean and comfortable. Free grab and go breakfasts were great and a big cost saver. While no gym, daily yoga classes were lovely
Stayed 3 nights in Dec 2024

8/10 Good

Loruhama

It’s a small little hotel right on the beach. The views of the ocean are amazing. They have free continental breakfast and the pool is nice. Would be prefect if they had a hot tub. There is a restaurant onsite that opens for dinner. Food was good. There’s plenty of shopping nearby. Safeway is across the street and there are lots of restaurants within walking distance. The beach is literally next to the hotel and the pool area is very pretty and well maintained. Nice lush greenery with nice palm trees. Can’t get over that view. Definitely a great choice when staying in Kauai. It’s also relatively close to the airport.

10/10 Excellent

Anne

Yoga on the beach every morning 7-8 was wonderful and the bikes in the lobby were free to use. Ver nice property, I really enjoyed my stay.
Stayed 2 nights in Nov 2024

8/10 Good

Jeremy

Great for an overnight on our way to Princeville. Mcdonalds and safeway across the street. Breakfast was standard but muchly appreciated.
Stayed 1 night in Nov 2024

10/10 Excellent

Brian

Nuce ocean front property
Stayed 3 nights in Dec 2024

2/10 Terrible

Darius

Disliked: Cleanliness, staff & service, amenities, property conditions & facilities
In 5 nights of stay room wasn’t cleaned once.
Stayed 5 nights in Jan 2025

10/10 Excellent

Javier

Amazing
Amazing stay . Great service . Great amenities.
Stayed 4 nights in Nov 2024