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From69US$ /night
Check-in
18Jan2026Select date
Check-out
19Jan2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

4-796 Kuhio Highway, Kapa'a, Hawaii, United States, 96746
-
Near Waipouli Beach
Great
8.1
8.2
/10
3.6
/5

Rooms With Island Decor

The ISO, 15 km from Lihue, provides rooms featuring modern island decor, tropical colors, and private lanai. Each refreshed 290sf room includes free WiFi, a ceiling fan, a mini-refrigerator, a coffee maker with Hawaiian Paradise Coffee, a flat screen TV, and a Bluetooth/USB clock radio. Guests can take home a reusable water bottle. Plug-in panels connect laptops, MP3 players, cameras, and game consoles to a 32" flat panel HDTV. A maximum of 2 children through age 17 can stay with at least 1 adult. Room options include partial ocean/pool view, ocean view deluxe, one-bedroom ocean view, oceanfront view, and premium oceanfront view. A private Hawaiian-style patio is offered in each studio apartment, along with a private bathroom.

Oceanfront Restaurant

The Bullshed Restaurant, a beachfront restaurant with a bar/lounge, is open daily for dinner. Steak and seafood specialties are served in a relaxed, family-style setting, featuring oceanfront dining. The Bullshed Restaurant is open from 4:30 p.m. to 9:30 p.m. and offers happy hour from 4:30 p.m. to 5:30 p.m. Guests can enjoy a light or hearty breakfast and choose from island-style cocktails, beers, and wines. The Bullshed Restaurant is managed by Castle Resorts & Hotels.

Activities and Amenities

Guests can enjoy recreation amenities such as an outdoor pool, shuffleboard, and a barbecue area. The hotel provides a high standard of service and amenities, including bicycle use. Morning oceanfront yoga is available. Waipouli town center, featuring Foodland, Safeway, Longs Drugs, and Starbucks, is steps away. Kela's Glass Gallery and Kela's Kauai Museum are nearby. A daily resort fee covers grab-and-go breakfast, self-parking, WiFi access, bicycle use, morning yoga, a souvenir reusable water bottle, a water refill station, and in-room coffee/tea.

Kauai East Coast Location

The ISO is situated between the historic towns of Kapaa and Wailua Mokihana, offering access to island dining, shopping, and activities. The resort provides convenient access to the Napali Coast to the north and Hanalei. It is in close proximity to Ho'olalaea Waterfall and Town Park. The commercial center of Lihue is 15 km away. Guests can explore Waipouli Beach and Fuji Beach.

Hotel Services

Castle Mokihana offers professional staff. Other amenities include a heated swimming pool and guest self-parking. Guests can discover Kauai, Hawaii, and enjoy shopping and sightseeing, topped off with an evening tee-time or Polynesian luau. The ISO is the perfect home base for natural wonders and recreation that define Kauai's heart. Service animals are allowed, and accessible hotel areas include the restaurant, lounge, registration desk, lobby, pool, and parking.

“In my opinion, this is a value-conscious option on Kauai, with a location convenient to shops and dining. I think the oceanfront yoga and bike rentals enhance the experience, while private patios add a touch of Hawaiian style. I also believe the on-site restaurant could be a highlight.”
Hotel logo
James DavidEditor-in-Chief at Tohotel
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Select your room type

The hotel offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Studio Ocean View
2 persons
295 sq. feet 
1 King-size bed
Shower
Coffee machine
Studio Pool View
2 persons
295 sq. feet 
1 King-size bed
Shower
Coffee machine
Deluxe Ocean View
4 persons
295 sq. feet 
1 King-size bed and 1 Sofa bed
Shower
Coffee machine
Hotel Ocean Front
2 persons
295 sq. feet 
2 Double beds
Shower
Coffee machine
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Price and Room Availability Calendar

Check availability and prices for your dates now!

Facilities

The hotel offers amenities for your comfortable stay and unforgettable experiences

General

  • No smoking on site
  • Free Wi-Fi
  • Parking
  • No pets allowed
  • Key card access

Sports & Fitness

  • Yoga class

Guest Parking

  • Cookware/ Kitchen utensils

Dining

  • Restaurant
  • Bar/ Lounge area

Spa & Leisure

  • Outdoor swimming pool
  • Beach access

Room features

  • Air conditioning
  • Sitting area
  • Patio
  • Dining table

Bathroom

  • Free toiletries

Self-catering

  • Cookware/ Kitchen utensils

Media

  • Flat-screen TV
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Dining Onsite

The Iso By Castle features the Bull Shed, a cozy beachfront restaurant that captures the essence of traditional American dining with a modern twist. Guests can relish a variety of steak and seafood specialties in a relaxed, family-friendly atmosphere, making it a delightful spot for both hearty meals and lighter fare.

Bull Shed

American steak and seafood
Ambiance
Family-friendly beachfront setting with a relaxed, cozy atmosphere
Key Offerings
Signature steak and seafood specialties served in a family-style manner, perfect for both light and hearty meals
Reservation
Reservations recommended
Open for dinner from 16:30 to 21:30, daily

Location

4-796 Kuhio Highway, Kapa'a, Hawaii, United States, 96746
Map view
4-796 Kuhio Highway, Kapa'a, Hawaii, United States, 96746
Nearby
Waipouli East Side
Waipouli Beach
1600 ft
4-831 Kuhio Hwy
Art by Mazzarella
700 ft
Restaurants
Lemongrass Grill Seafood & Bar
500 ft
4-871 Kuhio Hwy Ste
Oasis on the Beach
1200 ft
Waipouli Beach Resort & Spa
Coffee Bean & Tea Leaf
900 ft
4-771 Kuhio Hwy
Coconut's Fish Cafe
1500 ft
4-831 Kuhio Hwy Ste 420-424
Starbucks
600 ft
4-831 Kuhio Hwy Ste 208
Papaya's Natural Foods & The Kitchen at Papaya's
600 ft
4-901 Kuhio Hwy
Taps and Hops Eatery
1000 ft
4-885 Kuhio Hwy
The Bull Shed Restaurant
1200 ft
4-796 Kuhio Highway
Makai Lounge
3100 ft
650 Aleka Loop Courtyard by Marriott
Voyager Lanai
3200 ft
650 Aleka Loop Courtyard by Marriott
Explore Kapa'a
Explore Kapa'a's Vibrant Scene
Top Attractions
Activities
Dining
Entertainment
Waipouli Beach
Waipouli Beach
6 minutes walking
Pristine beach known for its calm waters, ideal for families. Sunset views are stunning, perfect for evening strolls.
Coconut Marketplace
Coconut Marketplace
15 minutes walking
A vibrant hub featuring shops and eateries. The marketplace hosts local crafts and foods, and often has live entertainment.
Lydgate State Park
Lydgate State Park
10 minutes driving
Offers beautiful beach areas, picnic spots, and tidal pools. Perfect for families, including facilities for swimming and snorkeling.
Pono Market
18 minutes walking
Local favorite for fresh poke and other Hawaiian dishes. An essential stop for foodies seeking authentic flavors and local ingredients.
Kayaking at Wailua River
15 minutes driving
Guided kayak tours through lush scenery and waterfalls. Rentals available; ideal for adventure seekers and nature lovers.
Yoga on the Beach
6 minutes walking
Relaxing yoga sessions with ocean views. Classes offered daily, perfect for soothing your mind and body while on vacation.
Lemongrass Grill Seafood & Bar
Lemongrass Grill Seafood & Bar
2 minutes walking
Casual eatery with a vibrant atmosphere. Signature dishes include fresh seafood and tropical cocktails; vegetarian options available.
Oasis on the Beach
Oasis on the Beach
5 minutes walking
Oceanfront dining with a focus on fresh, local ingredients. Known for its seasonal menu, sunset views, and romantic ambiance.
Coconut's Fish Cafe
Coconut's Fish Cafe
6 minutes walking
Relaxed vibe offering delicious fish tacos and healthy fare. Supports local seafood; ideal for a quick, satisfying meal.
Crossroads Christian Fellowship
Crossroads Christian Fellowship
5 minutes driving
Community gatherings and events held regularly. Welcoming atmosphere with music and activities for all ages.
Ship Store Galleries
Ship Store Galleries
15 minutes walking
Art gallery featuring local artists and exhibitions. A nice spot for cultural appreciation and often hosts special events.
Getting around
City Centre
Kapa'a23 min  ·  1.2 mi
Airports
Lihue Airport (LIH)22 min  ·  9.0 mi
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Property information and rules
Check-in
from 15:00-22:00
Check-out
until 11 am
Guest Parking
Public parking is possible on site for free.
Internet
is available in public areas for free.
Children & extra beds
There are no cots provided in a room. 
Pets
Pets are not allowed.
Number of rooms:
80
Former name
Castle Mokihana
Questions of the users
About The Iso By Castle
What type of beach can I expect at The ISO? Is swimming safe there?
10 November 2024
The beach in front of The ISO is rocky but still swimable. If you're looking for a great swimming spot, Lydgate Beach is about 1.6 kilometers away and is known for its sandy shores.
Are there any additional charges like resort fees that I should be aware of?
15 January 2025
Yes, a daily resort fee applies which covers several amenities during your stay.
When booking an ocean view room, can I be certain I will get a room with that view?
25 March 2025
Booking an ocean view category guarantees that you will receive a room with an ocean view; however, the specific room is not predetermined.
Is it possible to prepare simple meals during my stay?
5 April 2025
The ISO does not offer cooking facilities in the rooms, so meal preparation is not available.
Can a family of four, including two adults and two children, be accommodated in a standard double bed room?
12 May 2025
Yes, a standard room with two double beds can comfortably accommodate two adults and two children.
Do you provide beach chairs for guests, or should arrangements be made elsewhere?
18 June 2025
Beach chairs are available on-site, subject to availability, for guest use.
Is there a swimming pool at The ISO for guests to enjoy?
3 July 2025
Yes, there is a swimming pool available for guests to use during their stay.
Is there public transportation available near The ISO for those not renting a car?
22 August 2024
Yes, the Kauai Bus service can be accessed nearby, providing convenient transportation options.
Is complimentary WiFi accessible in the guest rooms?
30 September 2025
WiFi is available at The ISO, including in the guest rooms.
What is the policy on service animals at The ISO?
17 October 2024
Only service animals are permitted on the property to assist guests.
Is breakfast included in the room rate, or are there paid options available?
2 November 2025
Guests can enjoy a complimentary grab-and-go breakfast as part of their stay.

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