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

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....
$62

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...
$85

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...
$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...
$188

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...
$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...
$227

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....
$50

Experience the best of Waikiki on a Turtle Snorkel & Sail combo aboard the Hawea Catamaran. This popular Oahu tour blends marine exploration and island...
$90

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,...
$215

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)!...
$199

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...
$234

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...
$69

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...
$137

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...
$223

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...
$81

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...
$174

