The ISO by Castle
The ISO by Castle
You might be eligible for a Genius discount at The ISO by Castle. Sign in to check if a Genius discount is available for your selected dates.
Genius discounts at this property are subject to booking dates, stay dates, and other available deals.
Located across from Waipouli Town Center, The ISO by Castle is beachfront Kapaa studios feature free WiFi, an oceanfront swimming pool and an on-site restaurant. A private Hawaiian-style patio is offered in each studio apartment. Coffee-making facilities are also available. The Bullshed Restaurant, open daily for dinner, features oceanfront dining. Steak and seafood specialties are served in a relaxed, family-style setting. A snorkeling beach and putting green, tennis and shuffleboard courts are located on site. Free parking is provided. Kapaa Beach Park is 1 mile away. Lihue Airport is 15 minutes’ drive away from The ISO by Castle.
Couples in particular like the location – they rated it 9.2 for a two-person trip.
Distance in property description is calculated using © OpenStreetMap
Most popular amenities
- Outdoor swimming pool
- Free parking
- Free Wifi
- Beachfront
- Non-smoking rooms
- Restaurant
- Bar
Sign in, save money

Guest reviews
Categories:
Select topics to read reviews:
Guests who stayed here loved
- Rakboon
United States
“Ocean view with good walk/bike path. Very close to Safeway. And a walking distance to Thai food truck!! Love it!!” - Mark
Australia
“Amazing location, for the view and conveniently located near some excellent eateries. Key features of any room for me are the comfort of the bed and the quality of the shower, both were excellent. As a bonus towels were excellent.” - Carol
United States
“We love the relatively small size of the hotel. The ocean views are spectacular. Although it is convenient to the Coconut Marketplace and the shopping center across the street, the hotel is bordered by an open field and a canal on either side. The...” - Dawna
United States
“The property had great amenities and activities. Yoga in the morning, a pool, ice and filtered water for your water bottle they gave us, and bikes you could check out.property is an older property and you could tell but it was clean.” - Christopher
United States
“The location is great. Right on the water. I'm glad they've help the property for so long and haven't sold it to a bigger developer or something like that. The room and lānai were very clean and the AC worked great although we didn't use it much....” - Steven
United States
“Great room with view. Wonderful breakfast. Due to a medical issue they moved us to a room with view of ocean. This was a last minute booking because of an injury.” - Shailendra
United States
“Fantastic location. Free bikes. Resort fees but no amenities if you’re not going to take the free bikes or do a 7am yoga sesh. Old rooms with rusted fixtures. Breakfast was bad. Housekeeping and staff were great.” - Julianne
Canada
“Beautiful grounds, loved the moa and having the restaurant attached was wonderful.” - Brian
United States
“The lady at the front desk - Roberta was so helpful and friendly!! She gave us many suggestions for snorkeling and hikes that were great !!” - Jenna
United States
“Our view was incredible, we overlooked the pool / ocean, it was magical! The pool was quiet, we were usually the only people laying out which was nice. I love that they offer bikes so you can go on the bike path, they offer yoga in the mornings,...”
Hotel area info
Restaurants1 Restaurant On Site
- Bull Shed
- CuisineAmerican
- Open forDinner
- AmbienceFamily-friendly • Traditional • Modern • Romantic
Amenities of The ISO by CastleGreat facilities! Review score, 8
Most popular amenities
- Outdoor swimming pool
- Free parking
- Free Wifi
- Beachfront
- Non-smoking rooms
- Restaurant
- Bar
Outdoors
- Beachfront
Activities
- Bicycle rental
- Beach
Food & Drink
- Bar
InternetWifi is available in public areas and is free of charge.
ParkingFree public parking is available on site (reservation is not needed).
Safety & security
- Key card access
General
- Air conditioning
- Smoke-free property
- Non-smoking rooms
Outdoor swimming poolFree!
Spa
- Yoga classes
Languages Spoken
- English
House rulesThe ISO by Castle takes special requests – add in the next step!
Child policies
Children of all ages are welcome.
Children 18 and above will be charged as adults at this property.
To see correct prices and occupancy info, add the number and ages of children in your group to your search.
Crib and extra bed policies
Cribs and extra beds aren't available at this property.




The fine printMust-know information for guests at this property
Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.
In response to the coronavirus (COVID-19), additional safety and sanitation measures are in effect at this property.
Due to the coronavirus (COVID-19), this property is taking steps to protect the safety of guests and staff. Certain services and amenities may be reduced or unavailable as a result.
Due to the coronavirus (COVID-19), this property has reduced reception and service hours.
Due to coronavirus (COVID-19), this property adheres to strict physical distancing measures.
Due to the coronavirus (COVID-19), wearing a face mask is mandatory in all indoor common areas.
License number: W-34434930-01