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)

Glass-Bottom Boat Cruise from Waikoloa
Discover the Big Island’s vibrant underwater world on this glass-bottom boat cruise on Anaeho’omalu Bay. From Waikoloa, near Kona, board a comfortable 26-foot (7.9-meter) boat...
$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...
$89.56

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...
$169.64

Join one of Oahu’s most popular ocean adventures and experience why over 300,000 guests have fallen in love with this unforgettable dolphin encounter. Cruise along...
$183

There’s no better place to take a dip than the crystal-clear waters of Waikiki—and no better way to experience a Hawaiian sunset than from the...
$56

As the sun sets over the Pacific, enjoy a luxurious Honolulu dinner cruise along the scenic coastline near Diamond Head. Indulge in a gourmet steak...
$193

Kauai: Leila Na Pali Sunset Dinner Sail
Let us wine & dine you as we sail off into the sunset along Kauai’s spectacular Napali Coast. Enjoy appetizers, craft beer, wine, and Koloa...
$263.82

Looking for the BEST VALUE & MOST COMPLETE Circle Island Snorkeling Tour? Join us for the ultimate full-day, action-packed adventure that will guide you to...
$112.10

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...
$85.16

Enjoy a prime opportunity to see humpback whales as they migrate through Hawaiian waters from Alaska between December and May. Setting out from Kihei, cruise...
$99.64

Waikiki Signature Sunset Catamaran Sail
Experience a Hawaiian sunset like no other on a cocktail cruise along Oahu's coast. Departing from Waikiki and heading toward Diamond Head, this catamaran journey...
$84.96

Waikoloa Signature Catamaran Sunset Sail
End your day in paradise with a relaxing sunset cruise along Waikoloa’s beautiful Kohala Coast. Departing from Anaeho‘omalu Bay, the Spirit of Aloha catamaran offers...
$143.10

Please read this tour description. There are lots of Kona snorkeling trips, most companies are double the price for this tour. We offer the best...
$99

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...
$227.13

Set sail on a 3-hour Ko Olina catamaran cruise and explore the crystal-clear waters off Oahu’s western coast. Departing from the Ko Olina Marina, this...
$195

Discover our world beneath the waves with Atlantis Submarines Kona! Our battery-powered vessels are the world’s most technologically advanced passenger submarines. A special added bonus...
$144.37

