Hawaii 4th of July activities 10% Promo Code (Updated 2026)

Hawaii, USA

Use promo code: JULY4 (must book on this website) and save 10% on Hawaii Memorial Day Weekend 2026 tours, tickets, events, and things to do. Pick your tour below and use code JULY4 (savings are shown at checkout). The JULY4 Promo Code discount cannot be used with other promotions, is only redeemable on Cool Hawaii, and is a limited-time offer, so reserve your spot today while it lasts!

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598 Results
Waikiki Turtle Canyon Guided Snorkel: Turtle Guarantee

Choose Cool Hawaii’s most-reviewed Turtle Canyon snorkel tour, with more than 4,800 traveler reviews and an experienced crew focused on a professionally guided in-water experience. …More

Likely to Sell Out
Likely to Sell Out

Choose Cool Hawaii’s most-reviewed Turtle Canyon snorkel tour, with more than 4,800 traveler reviews and an experienced crew focused on a professionally guided in-water experience....

2 hours • Free Cancellation
4.9 (4,826)
from
$62
Maui Eco-Raft Tour: Eye-Level Whale or Dolphin Watching - Lahaina

Eye-level whale watching (or summer time dolphin watching) onboard our low-to-water small group zodiac rafts. Native Hawaiian owned and voted Cool Hawaiis Traveler's Choice, Hawaii …More

Likely to Sell Out
Likely to Sell Out

Eye-level whale watching (or summer time dolphin watching) onboard our low-to-water small group zodiac rafts. Native Hawaiian owned and voted Cool Hawaiis Traveler's Choice, Hawaii...

2 hours • Free Cancellation
4.9 (2,733)
from
$85
Kona Manta Ray Snorkel Tour: Guaranteed or come again free

Why Choose Us for Your Manta Ray Night Snorkel? The strongest light power out of any operator…! Choose us if you want the most manta …More

Likely to Sell Out
Likely to Sell Out

Why Choose Us for Your Manta Ray Night Snorkel? The strongest light power out of any operator…! Choose us if you want the most manta...

1 hour 30 minutes • Free Cancellation
4.8 (2,424)
from
$15
Oahu: Submarine Scooter Adventure

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 …More

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...

2 hours
4.8 (2,391)
from
$188
Waikiki Sunset Cocktail Sail on the Moana Catamaran

All aboard! There is no better place to be during Oahu’s magnificent golden sunsets than on our Waikiki Sunset Cruise, an unmatched experience complete with …More

Likely to Sell Out
Likely to Sell Out

All aboard! There is no better place to be during Oahu’s magnificent golden sunsets than on our Waikiki Sunset Cruise, an unmatched experience complete with...

2 hours • Free Cancellation
4.9 (2,381)
from
$90
Kauai: NaPali Boat Tour on the Amelia K

If you're visiting Kauai, you absolutely can't miss seeing the stunning NaPali Coast. We offer a one-of-a-kind experience to do just that. As a Native …More

If you're visiting Kauai, you absolutely can't miss seeing the stunning NaPali Coast. We offer a one-of-a-kind experience to do just that. As a Native...

5 hours • Free Cancellation
5.0 (1,780)
from
$227
Oahu Catamaran Snorkel Tour: See Turtles 100% Guaranteed

Experience one Cool Hawaii's 2025 Top 20 Best Excursions in the country. This Oahu Catamaran snorkel tour offers unbeatable value and family-friendly fun from Waikiki. …More

Experience one Cool Hawaii's 2025 Top 20 Best Excursions in the country. This Oahu Catamaran snorkel tour offers unbeatable value and family-friendly fun from Waikiki....

2 hours • Free Cancellation
4.9 (1,753)
from
$50
Waikiki Turtle Snorkel and Sail on Hawea Catamaran

Experience the best of Waikiki on a Turtle Snorkel & Sail combo aboard the Hawea Catamaran. This popular Oahu tour blends marine exploration and island …More

Experience the best of Waikiki on a Turtle Snorkel & Sail combo aboard the Hawea Catamaran. This popular Oahu tour blends marine exploration and island...

2 hours 30 minutes • Free Cancellation
4.8 (1,743)
from
$90
Kauai: Na Pali Coast Super Raft Snorkel Adventure

Get ready for the ultimate Na Pali Coast adventure aboard the Kauai Voyager I or II, 37-foot custom-built Naiad Super Rafts designed for comfort, speed, …More

Likely to Sell Out
Likely to Sell Out

Get ready for the ultimate Na Pali Coast adventure aboard the Kauai Voyager I or II, 37-foot custom-built Naiad Super Rafts designed for comfort, speed,...

4 hours 30 minutes • Free Cancellation
4.9 (1,660)
from
$215
Molokini Crater + South Maui Coast Adventure from Kihei, Maui

Speed through the water from Maui to the Molokini Crater for a small-group snorkeling adventure where the underwater visibility often exceeds 180 feet (55 meters)! …More

Speed through the water from Maui to the Molokini Crater for a small-group snorkeling adventure where the underwater visibility often exceeds 180 feet (55 meters)!...

5 hours • Free Cancellation
5.0 (1,612)
from
$199
Kauai: Deluxe Na Pali Snorkel Cruise aboard Lucky Lady

An all-inclusive day exploring the Nā Pali Coast that truly captures the beauty of the Island of Kauai. Our Coast Guard-certified Captain will guide you …More

An all-inclusive day exploring the Nā Pali Coast that truly captures the beauty of the Island of Kauai. Our Coast Guard-certified Captain will guide you...

5 hours 30 minutes • Free Cancellation
4.9 (1,561)
from
$234
Kona Snorkel Tour: Captain Cook Reef Snorkel, Dolphin & Sea Caves

2 different snorkeling locations! Captain Cook Snorkel Tour to kealakekua bay. Fast, agile Zodiac navy boat (used by Navy SEALs) gets you to the bay …More

Likely to Sell Out
Likely to Sell Out

2 different snorkeling locations! Captain Cook Snorkel Tour to kealakekua bay. Fast, agile Zodiac navy boat (used by Navy SEALs) gets you to the bay...

3 hours • Free Cancellation
4.8 (1,546)
from
$69
Maui: Original Sunset Cruise with Open Bar from Ka’anapali Beach

Part of the reason Maui has been so popular year after year is due to the breathtaking sunsets. Sure you could just watch from the …More

Likely to Sell Out
Likely to Sell Out

Part of the reason Maui has been so popular year after year is due to the breathtaking sunsets. Sure you could just watch from the...

2 hours • Free Cancellation
4.9 (1,546)
from
$137
Kauai: Deluxe Na Pali Sunset Cruise aboard Lucky Lady

Tour the Na Pali coast aboard a Luxury Catamaran, Lucky Lady for an afternoon that features incredible scenery topped off with a spectacular sunset. Look …More

Tour the Na Pali coast aboard a Luxury Catamaran, Lucky Lady for an afternoon that features incredible scenery topped off with a spectacular sunset. Look...

5 hours • Free Cancellation
4.8 (1,546)
from
$223
Waikiki 2 hour Turtle Canyon Snorkeling Adventure

Join us for a 2-hour snorkeling adventure at Turtle Canyon, one of Oahu’s top snorkeling spots! Cruise along the stunning Waikiki coastline aboard the either …More

Likely to Sell Out
Likely to Sell Out

Join us for a 2-hour snorkeling adventure at Turtle Canyon, one of Oahu’s top snorkeling spots! Cruise along the stunning Waikiki coastline aboard the either...

2 hours • Free Cancellation
4.8 (1,463)
from
$81
Luxury Snorkel Cruise with Dolphin Watch and Hawaiian Meal

Cruise along Oahu's scenic west coast aboard a comfortable, custom catamaran designed for premium ocean exploration and unbeatable coastal views. You'll dive into the island's …More

Cruise along Oahu's scenic west coast aboard a comfortable, custom catamaran designed for premium ocean exploration and unbeatable coastal views. You'll dive into the island's...

3 hours 30 minutes • Hotel pickup offered • Free Cancellation
4.8 (1,458)
from
$174
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