The ISO by Castle
4-796 Kuhio Hwy, Kapaʻa, HI 96746
Room Reservations: +1 (866) 290-5708
Hotel Direct: (808) 822-3971
Email: [email protected]
Get Social with Castle Resorts & Hotels
Offers
Deals & Promotions
Find the deals and the promotions meant just for you. Check out our seasonal specials, plan in advance for our best deals, or grab last minute bargains that pop up.
Celebrate with 30% off your next stay. Book by 3/31/25 for travel through 11/30/25.
Hawaiʻi residents get 15% off + perks on interisland travel with Hawaiʻi ID.
Plan ahead for better deals! Book in advance for up to 20% off. Don’t miss out on great savings!
You Only Live Once so book now before these deals are gone on select rooms and categories.
Guests 60+ enjoy 10% off travel! confirm your Prime-Time discount at check-in.
AAA/CAA members get 10% off! Present your active membership card to enjoy this deal.
Get 10% off stays for business, meetings, or conventions. Extend for some “bleisure” time!
Gov employees & DOD contractors save 10% with ID. Book now and save!
Active/retired military save 15%! Simply show your Military ID at check-in and enjoy!
The Season of Lei promotional rate is prepaid, non-refundable, non-exchangeable and non-cancellable. Blackout dates apply and rooms are subject to availability. Minimum length of stay may be required. Not applicable with other discounted rate promotions and not applicable with group bookings. Applies to new reservations only. Offer valid at participating properties only. Other restrictions may apply.
Best Rate Guarantee! Book Direct & Save!
Terms apply.