The Iso By Castle Hotel Kapa'a, Kapa'a - Reviews, Rooms Options & Prices 2025

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About the Resort

4-796 Kuhio Hwy, Kapa'a, Hawaii, United States of America, 96746

The ISO by Castle is a boutique resort located in Kapa'a, steeped in the rich cultural history of Kauai. The property boasts modern island décor integrated within its accommodations, showcasing the stunning natural beauty of Kauai's eastern shores. With oceanfront views and a focus on sustainability, this resort offers a serene getaway for adventurous travelers and a great base for exploring the island's attractions. Its high standard of service and amenities ensures a memorable stay for every guest.

Location

The ISO is conveniently located just steps away from Waipouli town center, providing easy access to dining, shopping, and local attractions. It is ideally situated for exploring nearby landmarks, including the Napali Coast and Ho'olalaea Waterfall, enhancing the travel experience. Lihue, the commercial center, is only 15 km away, making it easy for guests to access more of what the island has to offer.

Rooms

The ISO offers refreshed 290sf rooms featuring chic island décor and private lanais with ocean views. Each accommodation is equipped with amenities including a ceiling fan, free WiFi access, flat screen TV, and a coffee maker with Hawaiian Paradise Coffee. The bathrooms contain either a bath or shower, ensuring comfort and convenience for all guests.

Eat & Drink

Guests can dine at The Bull Shed Restaurant, known for its prime rib, seafood specialties, and tropical cocktails, all served in an oceanfront setting. The restaurant features both indoor and outdoor seating along with nightly entertainment by local artists, providing a vibrant atmosphere. A daily Grab & Go breakfast is included, ensuring a great start to the day for guests on the move.

Leisure & Business

The beachfront resort includes a heated swimming pool, shuffleboard, and BBQ area, offering ample opportunities for relaxation and activities. Guests can discover the wonders of Kauai through various recreational options like golfing, hiking, and beach activities. Additionally, yoga mats are provided in rooms, promoting wellness and tranquility within the stunning natural environment.

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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

Deluxe Room

Max:

4 persons

27 m²

Bed options:

1 King Size Bed

Sea view

Shower

Coffee machine

room details

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Oceanfront Room

Max:

2 persons

27 m²

Bed options:

2 Double beds

Sea view

Shower

Coffee machine

room details

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Guest Room

Max:

2 persons

27 m²

Bed options:

2 Double beds

Sea view

Shower

Coffee machine

room details

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Getting around

Explore available ways to reach your dream destination

City Center

Kapa'a 1.2 mi

Airports

Lihue (LIH) 9.0 mi

Facilities

The hotel offers amenities for your comfortable stay and unforgettable experiences

Refreshing Yoga!

“The daily morning yoga session by the ocean was absolutely serene and set the perfect tone for the day.” view full review

Free and Easy!

“The free parking was incredibly convenient, allowing us to explore the area without any hassle.” view full review

Accessible Comfort

“The hotel provided beach towels and had filling stations, ensuring all guests felt well accommodated.” view full review

Spacious Rooms!

“Our room was large and airy, with a lovely sea breeze that made our stay comfortable without AC.” view full review

General

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

Location

4-796 Kuhio Hwy, Kapa'a, Hawaii, United States of America, 96746

Map view

4-796 Kuhio Hwy, Kapa'a, Hawaii, United States of America, 96746

City landmarks

Mall

Coconut Marketplace

4100 ft

4-484 Kuhio Hwy

Ship Store Galleries

3900 ft

Parks

Lydgate State Park

1.7 mi

Kapaa Bypass Road

Crossroads Christian Fellowship

5200 ft

Beach

Fuji Beach

3100 ft

4504 Kukui St

Aloha Images

1.0 mi

Beach

Kapaa Beach Park

1.3 mi

4433b Panihi Rd

Off The Beaten Path Kauai

2800 ft

4-1170 Kuhio Hwy

Kapaa Hongwanji Mission

3400 ft

4-1300 Kuhio Hwy

Pono Market

4900 ft

Pono Kai Street

5200 ft

Kapaa Bypass

Crossroads Christian Fellowship Kauai

4400 ft

Beach

Lae Nani Beach

5100 ft

Wailua Bay

1.2 mi

Gallery

Aloha Images Gallery

1.0 mi

Beach

Wailua Beach

1.3 mi

Wailua River State Park

Hikinaakala Heiau

1.1 mi

Market

Kapa'a Town Park

1.1 mi

Parks

Lydgate Park

1.7 mi

Kuhio Highway

Wet and Dry Caves

1.4 mi

Kapaʻa

Wailua Heritage Trail

1.2 mi

Parks

Smith Family Garden Luau

1.8 mi

Garden

Smiths Tropical Paradise

1.8 mi

4593-4599 Kuamoo Rd

Pohakuho Ohanau

1.5 mi

4-1613 Kuhio Hwy

NoKa Fair

1.4 mi

4587-4591 Kuamoo Rd

Holoholoku Heiau

1.5 mi

Beach

Wailua River State Park

1.6 mi

Moikeha Canal

1.6 mi

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

Reviews and Ratings

Feedback from previous guests about their experience

72%

liked the resort and would come back again

7.2/10

Very good

Rooms

7.0

Location

9.0

Service

7.9

Dining

5.2

Arthur

United States of America, January 2025

8.0/10

I enjoyed my stay at The Iso By Castle in Kapa'a. the location was stunning, right on the shoreline, making it easy to walk out and listen to the ocean's waves. The newly remodeled rooms were comfortable, although I missed having air conditioning during my stay. Breakfast could use some improvement, but overall, I found great value here.

Rooms

8.0

The rooms were recently remodeled in a contemporary style and featured sliding screened doors that opened to a private lanai. the view from my ground floor room was fantastic as I could walk right out onto the lawn.

Service

9.0

The service was top notch. my request for a specific room was met, and daily housekeeping did a thorough job.

Location

9.0

The location within Kapa'a was perfect. I could easily walk to grocery stores, cafes, and restaurants in less than five minutes.

Dining

6.0

Breakfast was simple and left something to be desired. options were limited to toast, jam, cereal, and coffee, and they ran out of food quickly.

Facilities

8.0

The hotel grounds featured a cool pool that looked brand new and was never overcrowded. it was a nice spot to relax after a morning of activities.

Susan

United States of America, January 2025

8.0/10

I had a generally enjoyable stay at The Iso, especially with the beautiful garden and easy access to the beach. The clean rooms with ocean views were a big plus, though the breakfast options left much to be desired. Overall, it was a solid choice for a budget-friendly trip, but improvements could be made in a few areas.

Rooms

8.0

My room was bright and clean, featuring a comfortable King size bed, a private terrace with an ocean view, and a well-equipped setup including free WiFi and a refrigerator.

Service

9.0

The front office staff was always friendly and helpful. it really enhanced my experience during my stay.

Location

9.0

The hotel's location is fantastic, right by the shoreline and close to shops, which made it easy to explore the area and grab essentials.

Dining

6.0

The breakfast options were limited and mostly unhealthy. I definitely recommend seeking breakfast elsewhere for better quality.

Facilities

8.0

The nice garden with direct beach access was a highlight, and the yoga class offered in the garden was a nice touch.

Alex

United States of America, December 2024

8.0/10

I had a pretty good time at this hotel. The location is fantastic, right by the beach, which made for beautiful views. The rooms were clean and spacious, and the staff was really friendly. However, the dining options left a bit to be desired, especially since there weren't many healthy items available. Overall, the stay was enjoyable, but it could be improved with better dining variety.

Rooms

8.0

The rooms were clean, spacious, and had a great view.

Service

9.0

The staff was really friendly and accommodating.

Location

10.0

The hotel was in an excellent location right on the beach, making it super convenient for swimming.

Dining

5.0

The dining options were limited and mainly unhealthy, which was disappointing.

Facilities

8.0

The pool area was nice and well-maintained.

Marcus

United States of America, December 2024

6.2/10

Kauai blew me away with its beauty, but my stay at The ISO was a mixed bag. The rooms were spacious and clean, and the location was great, just steps from the beach. However, the lack of air conditioning and some service inconsistencies left me wanting more. I'd consider returning for the island's charm, but the hotel could certainly improve.

Rooms

6.0

The rooms are big, airy, and clean, but there's no air conditioning; just a ceiling fan and sea breeze.

Service

6.0

Check-in felt impersonal, and I experienced some frustration with housekeeping not changing our linens as expected.

Location

8.0

The hotel is right on the beach and conveniently close to Kapa'a with grocery stores and dining options nearby.

Dining

5.0

Breakfast was pretty basic with limited options; I had low expectations and still found it underwhelming.

Facilities

6.0

There are beach towels provided and some bikes for use, but the bike condition wasn’t great and beach access is limited.

Anthony

United States of America, December 2024

7.0/10

I had a decent stay at this hotel, which is right on the beach and close to grocery stores and restaurants. The rooms were clean, but the air conditioning didn't keep up with the heat. The staff was friendly and helpful, though the dining options left a bit to be desired. Overall, it’s a good value, but there are some areas for improvement.

Rooms

6.0

The rooms were clean and had a nice balcony, but the air conditioning wasn't very effective during the heat.

Service

8.0

The staff was friendly and very accommodating throughout my stay.

Location

9.0

The hotel is perfectly located right on the beach and conveniently close to the supermarket and other restaurants.

Dining

5.0

The dining service was somewhat lacking, as breakfast items ran out quickly and there were no healthy options.

Facilities

7.0

The hotel had decent amenities but could improve on dining choices and air conditioning.

Daniel

United States of America, October 2024

7.8/10

I had a lovely stay at this hotel, which is perfectly situated right on the beach and close to everything in the Kapaa area. The rooms were clean, with a comfortable feel, but the dining situation could use improvement, as the food ran out early. Overall, the location made up for any minor issues, and I found the value to be quite good considering the amenities.

Rooms

8.0

The room was clean and comfortable, featuring two twin beds and a kitchenette, which was really convenient.

Service

9.0

The staff was friendly and accommodating, making sure I felt welcome throughout my stay.

Location

10.0

This hotel is right on the beach and adjacent to a beautiful 7-mile bike path along the coast, making it perfect for outdoor activities.

Dining

5.0

The dining experience was somewhat lacking because the small assortment of food was often gone by 9 AM, which was too early for breakfast.

Facilities

7.0

The hotel offered good amenities, though I felt there could have been more options for dining and snacks.

Annie

United States of America, October 2024

7.0/10

Overall, my stay at The Iso By Castle was quite enjoyable. The views were stunning, and the location was central, making it easy to explore the island. However, I did find the breakfast options very basic and the service a bit lacking at times. still, the friendly staff members I did encounter were delightful.

Rooms

6.0

The rooms have been newly remodeled and come with a great ocean view. though my room on the second floor required stairs to access the beach. There were some missing features like a table and luggage space.

Service

8.0

While the office staff seemed preoccupied at times, Brian was a standout. he was incredibly welcoming and even introduced me to local Hawaiian food, which truly enhanced my stay.

Location

9.0

I loved the central location. it was close to the airport, grocery stores, and many dining options. Being right on the shoreline made exploring the island so convenient.

Dining

5.0

The breakfast offered was quite limited. just basic items like coffee, juice boxes, and mini muffins. It was more of a grab-and-go option than a dining experience.

Facilities

7.0

The pool was nice, and I appreciated having 24-hour ice water available. however, the bicycles were often checked out when I wanted to use them.

Craig

United States of America, October 2024

6.6/10

I loved the beautiful views and the pool, which provided a great spot to relax after a day of exploring. However, the breakfast options were quite limited, and I faced some issues with ants in my initial room. Overall, it's an affordable and decent place to stay, especially with the beach right in front.

Rooms

6.0

I initially stayed in a small room with twin beds, which wasn't what I booked, but when I got moved to a queen room, it was much larger and nicer.

Service

6.0

The front desk staff seemed preoccupied, and my initial interaction regarding the bug issue wasn't very pleasant. However, the maintenance staff was friendly and addressed my concerns.

Location

8.0

The location is great, right on the shoreline and close to shops and restaurants, making it easy to explore the Kapa'a area.

Dining

6.0

The breakfast was limited, mainly consisting of grab-and-go snacks rather than a full meal, and it was served in plastic dishes.

Facilities

7.0

The swimming pool was nice, and they had free bike rentals available, though they seemed in short supply.

Ian

United States of America, September 2024

7.2/10

This hotel offers a wonderful beachside experience with stunning ocean views and easy access to grocery stores. The rooms are decent but could use some updates, and the service is pretty friendly. However, the dining options leave much to be desired with limited and unhealthy choices. Overall, it’s a solid place for a beach getaway, especially considering the good location and value for money.

Rooms

7.0

The rooms were decent but a bit dated, and while they had great views, they could be more inviting.

Service

8.0

The staff was friendly and helpful throughout my stay.

Location

9.0

The hotel's location is fantastic, right on the beach and close to grocery stores, making it super convenient.

Dining

5.0

The dining options were quite limited, lacking healthy items and decent coffee.

Facilities

6.0

The facilities were adequate, but nothing stood out as exceptional.

Pat

United States of America, August 2024

6.6/10

I had a mixed experience at this hotel. On the one hand, the location is fantastic—right on the beach and close to plenty of groceries and activities. The rooms are clean and offer a great view, which I really enjoyed. However, the dining options were pretty disappointing with not much variety and limited hours. The facilities were decent, but improvements could definitely be made.

Rooms

7.0

The room was clean and had a nice balcony with a great view. However, the air conditioning wasn't very effective in the heat.

Service

7.0

The staff was friendly, but overall service could have been more attentive.

Location

9.0

The hotel is in a prime location, right on the beach and close to grocery stores and activities. It's quite convenient for exploring the area.

Dining

5.0

The dining experience was lacking. It mainly consisted of unhealthy items, and by the time I got there for breakfast, they were out of food.