Frequently Asked Questions
These answers are based on answers previously given to Cool Hawaii customers' questions.

Dive into an unforgettable underwater adventure on Oahu’s beautiful Maunalua Bay. Cruise past the iconic Diamond Head Crater aboard a comfortable power catamaran before descending...

Explore Waikiki’s marine mysteries while diving more than 100 feet underwater in an air-conditioned, eco-friendly, battery-powered submarine! A special added bonus of this tour experience...
These answers are based on answers previously given to Cool Hawaii customers' questions.
According to verified reviews on Cool Hawaii and TripAdvisor, the best Oahu Submarine Tours are:
According to verified reviews on Cool Hawaii and TripAdvisor, the best kid-friendly Oahu Submarine Tours are:
Oahu Submarine Tours with Instant Confirmation include:
Oahu Submarine Tours with Free Cancellation (in most cases up to 24 hours in advance of your activity date, check the specific activity page) include:
We sure do. Check out our curated lists of hand-picked Oahu Activities.
Based on our sales data over the past year, the most popular styles of tours and activities in Oahu are:
We guarantee the lowest price on all the activities available to book on our site. We'll refund the difference if you find the exact activity cheaper online until 48 hours before your activity starts.
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The following conditions apply to all lowest price guarantee refund requests:
Cool Hawaii wants to make your searches as relevant as possible. That's why we offer many ways to help you find the right experiences for you.
On some pages, you can select how to sort the results we display and also use filter options to see only those search results that meet your chosen preferences. You'll see explanations of what those sort options mean when you select them.
If you see a Badge of Excellence label, the award is based on average review ratings, share of bookings with a review, and number of bookings through Cool Hawaii over a 12-month period.
The importance of any one factor over any other in a sort order varies, and the balance is constantly being reviewed and adjusted. We're always updating our systems and testing new ways to refine and improve your results to make them as relevant as possible to meet your needs.

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