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From69US$ /night
Check-in
11Mar2026Select date
Check-out
12Mar2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Castle Hotel

4-796 Kuhio Highway, Kapa'a, Hawaii, United States, 96746
-
Steps from Waipouli Beach
Great
8.1
8.3
/10
3.6
3.8
/5

Location

The ISO Hotel is positioned on a private oceanfront expanse in Kapa'a, Kaua'i. This boutique hotel sits at the intersection of island, sky, and ocean, creating a scenic backdrop for sunrises. Guests can explore Kaua'i's eastern coast, making it a prime spot for beach activities and local attractions.

Rooms

The ISO offers several room types with stunning views of the Pacific Ocean. Choices include the Ocean View Deluxe, One Bedroom Ocean View, and Premium Ocean Front View rooms, each featuring fresh island decor and private lanais. Guests can enjoy spacious accommodations with options for king or double beds, accommodating families or groups.

Dining

On-site dining is available at The Bull Shed, recognized as Kauai's Best Steakhouse for six consecutive years. This restaurant serves tender Prime Rib and fresh catches with indoor or ocean-side seating. Open daily from 4:30 p.m. to 9:30 p.m., it also offers a happy hour from 4:30 p.m. to 5:30 p.m.

Wellness

Guests can participate in morning oceanfront yoga sessions, promoting relaxation and wellness. The hotel also provides yoga mats for personal use, enhancing the experience. The serene location by the ocean allows for a peaceful environment conducive to restoration.

Amenities

Additional amenities include an oceanfront swimming pool and bicycle rentals available for guest use during their stay. A complimentary Grab & Go breakfast is provided, ensuring a nutritious start to the day. A water refill station encourages sustainability while guests enjoy their time at the hotel.

Highlights

Location: Private oceanfront expanse in Kapa'a

Dining: The Bull Shed, Kauai's Best Steakhouse

Wellness: Morning oceanfront yoga sessions

Amenities: Bike rentals and oceanfront swimming pool

“The Iso By Castle has an enviable location directly on the beach, with a distinctive boutique atmosphere. I appreciate that you can grab a complimentary breakfast before heading out on one of the hotel's free bikes to explore. For a relaxed Kauai getaway that doesn't break the bank, this could be a smart choice.”
Hotel logo
James DavidEditor-in-Chief at Castle-hotel
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Choose your room

Castle hotels provide room choices such as doubles, family chambers, and grand suites—often with breakfast, free cancellations, and exclusive offers
Studio Ocean View
2 persons
27 m² 
1 King-size bed
Shower
Coffee machine
Studio Pool View
2 persons
27 m² 
1 King-size bed
Shower
Coffee machine
Deluxe Ocean View
4 persons
27 m² 
1 King-size bed and 1 Sofa bed
Shower
Coffee machine
Hotel Ocean Front
2 persons
27 m² 
2 Double beds
Shower
Coffee machine
Click button to see more rooms
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Price and Room Availability Calendar

See current availability and rates for your selected dates

Facilities

Each castle hotel provides features designed for both comfort and memorable moments
Facilities: Great
8.0/10Review score

General

  • No smoking on site
  • Free Wi-Fi in public areas
  • 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

Bull Shed offers a delightful dining experience with a focus on American steak and seafood specialties, nestled along the beautiful beachfront of historic Kapa'a. The relaxed, family-style setting caters to all, making it an inviting destination for both casual meals and romantic dinners under the stars.

Bull Shed

American steak and seafood
Ambiance
A relaxed, family-friendly atmosphere with a modern touch, perfect for enjoying a meal with loved ones or a romantic evening by the beach.
Key Offerings
Discover a menu that features succulent steaks and fresh seafood specialties, served in a comfortable, laid-back environment. The bar/lounge area complements the dining experience with a selection of refreshing cocktails.
Reservation
Recommended for larger groups or peak hours.
Open daily from 4:30 PM to 9:30 PM for dinner.

The Iso Hotel, Trademark Collection By Wyndham 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
480 m
4-831 Kuhio Hwy
Art by Mazzarella
190 m
Restaurants
Lemongrass Grill Seafood & Bar
150 m
4-871 Kuhio Hwy Ste
Oasis on the Beach
340 m
Waipouli Beach Resort & Spa
Coffee Bean & Tea Leaf
250 m
4-771 Kuhio Hwy
Coconut's Fish Cafe
450 m
4-831 Kuhio Hwy Ste 420-424
Starbucks
170 m
4-831 Kuhio Hwy Ste 208
Papaya's Natural Foods & The Kitchen at Papaya's
170 m
4-901 Kuhio Hwy
Taps and Hops Eatery
300 m
4-885 Kuhio Hwy
The Bull Shed Restaurant
340 m
4-796 Kuhio Highway
Makai Lounge
930 m
650 Aleka Loop Courtyard by Marriott
Voyager Lanai
960 m
650 Aleka Loop Courtyard by Marriott
Explore Kapa'a
Explore Nearby Attractions
Top Attractions
Activities
Dining
Entertainment
Lydgate State Park
Lydgate State Park
30 minutes' walk
A scenic park featuring a tidal pool, picnic areas, and walking trails, perfect for families and nature lovers.
Coconut Marketplace
Coconut Marketplace
15 minutes' walk
A vibrant shopping center with local shops, dining, and weekly events, ideal for cultural experiences and souvenirs.
Waipouli Beach
Waipouli Beach
6 minutes' walk
A beautiful beach known for its calm waters and stunning sunsets, great for swimming and relaxation.
Fern Grotto
10 minutes' drive
A natural amphitheater surrounded by lush greenery, accessible via a scenic boat ride and famous for its acoustics.
Kayaking on Wailua River
10 minutes' drive
Thrilling kayaking opportunities offering scenic views of the lush landscape, with rentals available nearby.
Yoga at Lydgate Park
30 minutes' walk
Relaxing outdoor yoga sessions held in a tranquil setting, suitable for all levels, with classes available seasonally.
Renting Bikes
5 minutes' drive
Various rental shops nearby for biking along the coast. Enjoy breathtaking views and fresh air on your ride.
Lemongrass Grill Seafood & Bar
Lemongrass Grill Seafood & Bar
2 minutes' walk
Casual dining with a focus on fresh seafood and local ingredients. Known for their tasty fish tacos and vibrant drinks.
Oasis on the Beach
Oasis on the Beach
5 minutes' walk
An oceanfront restaurant with a laid-back vibe, offering island-inspired dishes and spectacular sunset views.
Coconut's Fish Cafe
Coconut's Fish Cafe
6 minutes' walk
A family-friendly eatery specializing in fish tacos and Hawaiian fare, with great outdoor seating and a casual atmosphere.
Crossroads Christian Fellowship
Crossroads Christian Fellowship
20 minutes' walk
Family-friendly venue offering live music and community events throughout the week, creating a welcoming atmosphere.
Kapaa Beach Park
25 minutes' walk
A local beach park with picnic areas and volleyball courts, perfect for a family day out or a casual evening.
Local transport options
City Centre
Kapa'a23 min  ·  1.9 km
Airports
Lihue Airport (LIH)22 min  ·  14.5 km
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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
Wireless 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

Guest reviews & ratings

Guest impressions & feedback from past stays
Review score
Based on 764 verified reviews
8.0/10
Great
81%
Recommend
Breakfast
10.0/10
Cleanliness
8.3/10
Comfort
8.4/10
Facilities
8.0/10
Free Wi-Fi
8.5/10
Location
9.1/10
Paid Wi-Fi
7.7/10
Staff
8.4/10
Value for money
7.7/10
Pros
Beach access
Ocean views
Grab-and-go breakfast
Cons
Moldy room
Guest reviews
based on 1331 reviews
8.1/10
No reviews yet on our siteUnfortunately, our guests have not yet left any reviews for this hotel, but you can read reviews from Booking.com.
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Questions of the users
About The Iso Hotel, Trademark Collection By Wyndham
What can I expect from the beach in front of the hotel? Is it suitable for swimming?
12 November 2024
The beach at the hotel is rocky but swimmable. For a better swimming experience, Lydgate Beach is located about 1.6 kilometers away and is highly recommended.
Are there any additional fees, such as resort fees, that I should be aware of?
22 January 2025
A daily resort fee is applicable, which is not included in the quoted price.
Is it guaranteed to have an ocean view if I select that category when booking?
11 February 2025
Selecting an Ocean View category guarantees that room type; however, it does not book a specific room.
Is it possible to cook simple meals during my stay?
15 March 2025
Cooking facilities are not available, so meal preparation on-site is not an option.
Can two adults and two children comfortably stay in a room with two double beds?
10 April 2025
Yes, a room with two double beds can accommodate two adults and two children.
Are there beach chairs available for guests to use?
5 May 2025
Beach chairs are provided based on availability during your stay.
Is there a swimming pool at the hotel?
20 June 2025
Yes, there is a swimming pool available for guests.
What are my options for public transportation if I don't rent a car?
25 July 2025
The Kauai Bus is accessible nearby, providing public transportation for guests.
Is WiFi connectivity available in the guest rooms?
30 August 2025
Complimentary WiFi is offered throughout the hotel, including in the guest rooms.
Do I need to put down a deposit when making a reservation?
12 September 2025
Yes, a one-night deposit is required to secure your booking.
Are there grocery stores within walking distance from the hotel?
15 October 2025
Yes, there are grocery stores nearby that can be reached on foot.
Is breakfast included in my booking, or do you offer any all-inclusive options?
18 November 2025
A complimentary grab-and-go breakfast is included with your stay, but there are no all-inclusive packages available.

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Check-in
11Mar2026Select date
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12Mar2026Select date
Rooms and Guests2 Guests, 1 Room