Top things to do in Hawaii in Summer (Updated August 2026)

Hawaii, USA
Captain Cook Reef Snorkeling of Kealakekua Bay
Likely to Sell Out
Likely to Sell Out

Set out from Kailua-Kona for a half-day snorkeling activity to Kealakekua Bay/Captain Cook, one of the top snorkeling destinations on the Big Island. Look for...

4 hoursFree Cancellation
4 hoursFree Cancellation
4 hours • Free Cancellation
4.9 (159)
from
$80
Dolphin Watch Cruise with Waterslide & Snorkeling on Oahu

Our double-decker boat, Poseidon, offers multiple viewing angles for spotting dolphins during your Oahu dolphin watching cruise! Once we reach the snorkeling location, enjoy our...

3 hoursHotel pickup offeredFree Cancellation
3 hoursHotel pickup offeredFree Cancellation
3 hours • Hotel pickup offered • Free Cancellation
4.9 (159)
from
$179
Turtle Town After Dark: With Lights & Stars (Turtle Guarantee)

At Zephyr Maui we believe the best experiences happen in small groups. Expect personalized attention and attentive guides worlds away from large tour ops. Swim...

1 hour 30 minutesFree Cancellation
1 hour 30 minutesFree Cancellation
1 hour 30 minutes • Free Cancellation
4.9 (158)
from
$149
2 Hour Private Group Surf Lesson in Lahaina Maui

Personalized surf experiences are at the heart of what we do. We genuinely care, and we treat you and your ‘ohana as if you were...

2 hoursFree Cancellation
2 hoursFree Cancellation
2 hours • Free Cancellation
5.0 (152)
from
$125
Turtles & Tacos Luxury Catamaran Snorkel
Likely to Sell Out
Likely to Sell Out

Laid-back, fresh, and full of fun, this mid-morning snorkel sail is all about good vibes and island flavor. Cruise aboard our spacious 65’ catamaran and...

3 hoursFree Cancellation
3 hoursFree Cancellation
3 hours • Free Cancellation
4.8 (148)
from
$199
South Maui Shore Dive

This excursion is designed for people who are certified divers.  We will meet at one of the lovely dive sites located in the Wailea/Makena area of...

3 hoursFree Cancellation
3 hoursFree Cancellation
3 hours • Free Cancellation
5.0 (148)
from
$155
Kipu Zipline Safari - Kayak, Hike & Zipline

This tour does everything! Enjoy easy kayaking on a 2 mile long river, zipline on 2 thrilling lines, experience the WaterZip, and hike to waterfalls...

6 hours 30 minutes
6 hours 30 minutes
6 hours 30 minutes
4.9 (147)
from
$273.80
Nā Pali Coast Zodiac Raft Sea Caves Expedition on Kauai

Embark on the ultimate summer adventure: a thrilling Zodiac raft tour to Kauai’s Na Pali Coast Sea Caves, available May 17 –September 20. Enjoy a...

3 hoursFree Cancellation
3 hoursFree Cancellation
3 hours • Free Cancellation
5.0 (143)
from
$235
Turtle Town Sea Scooter Experience: Electric Jet Snorkel

At Zephyr Maui we believe the best experiences happen in small groups. Expect personalized attention and attentive guides worlds away from large tour ops. Swim...

1 hour 30 minutesFree Cancellation
1 hour 30 minutesFree Cancellation
1 hour 30 minutes • Free Cancellation
4.9 (142)
from
$119
Lunar Legends Night Stand up Paddle Kayak Water Experience

This serene nighttime adventure provides exclusive access to the villages of the Polynesian Cultural Center after they close to the public and features a controlled...

1 hour 30 minutesFree Cancellation
1 hour 30 minutesFree Cancellation
1 hour 30 minutes • Free Cancellation
4.9 (141)
from
$107
Oahu Open Water Shark Diving Experience
Likely to Sell Out
Likely to Sell Out

We are a Top-Rated Hawaii Eco-Tour run by Marine Biologists. We are known for Hawaii's famous Shark Diving, Whale Watches, Educational Snorkel Tours, and Private...

1 hour 45 minutesFree Cancellation
1 hour 45 minutesFree Cancellation
1 hour 45 minutes • Free Cancellation
4.9 (138)
from
$150
Family, Private & Group Standup Paddle Lessons in Waikiki
Likely to Sell Out
Likely to Sell Out

Here at Ohana Surf Project we believe our clients are like family, and we strive to provide the best service to every person who chooses...

2 hoursHotel pickup offeredFree Cancellation
2 hoursHotel pickup offeredFree Cancellation
2 hours • Hotel pickup offered • Free Cancellation
4.9 (137)
from
$116.18
Turtle Canyon Waikiki Snorkel Adventure

Relax and enjoy the crystal blue Hawaiian waters as a snorkeler and observer. Jump in and swim along Oahu's lively reefs and see our Hawaiian...

3 hoursFree Cancellation
3 hoursFree Cancellation
3 hours • Free Cancellation
4.8 (134)
from
$141.10
The Best 2 Hour Molokini Express Snorkeling

This tour snorkels Molokini after the morning crowds have left. That gives us much more freedom in the choices for snorkeling....

2 hoursFree Cancellation
2 hoursFree Cancellation
2 hours • Free Cancellation
4.9 (129)
from
$147
Half-Day Deluxe Molokini Snorkel Excursion in Maui

Begin your morning with a chef-prepared buffet breakfast as we cruise to Molokini Crater, a world-renowned marine preserve home to over 400 species of tropical...

5 hoursFree Cancellation
5 hoursFree Cancellation
5 hours • Free Cancellation
5.0 (127)
from
$249
Turtle Town Clear Kayak & Snorkel Tour - Free Photos Included
Likely to Sell Out
Likely to Sell Out

I am a local owner-operator with over 10 years of experience guiding on Maui waters. Unlike the large corporate tours, I lead every trip personally...

3 hoursFree Cancellation
3 hoursFree Cancellation
3 hours • Free Cancellation
4.9 (126)
from
$115
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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.