Use promo code: JULY4 (must book on this website) and save 10% on Oahu 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!
Oahu 4th of July activities 10% Promo Code (Updated 2026)

Imagine a private helicopter flight soaring over a beautiful Hawaiian beaches with the love of your life. As you take in the beauty of the...
$1,820

Waikiki Glass Bottom Boat Cruise
Experience the beauty of Oʻahu South Shore as we sail toward Lēʻahi (Diamond Head) aboard the spacious Haleiwa Queen, a 50ft power catamaran, with 49...
$46

Waikiki Beach Glass Bottom Boat Tour
Enjoy the beauty of Oahu’s South Shore! Depart from the Kewalo Basin Harbor and head toward Lē’ahi (Diamond Head). While aboard the Haleiwa Queen, enjoy...
$46

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

Snorkel Turtle Canyon on the Largest Luxury Catamaran! Top Quality Gear, Certified Crew & Premium On Board Bar. When you trust Moana Sailing Co. for...
$85

Oahu: Atlantis Submarine Adventure in Waikiki
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...
$151

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

-Open bar fully included: beer, wine, cocktails, and more -21+ only on Fridays! -Direct beach boarding — no harbor shuttle, no bus, no wasted time...
$85

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

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

Dolphins and You has been taking guests out on the waters of Oahu for more than 35 years. The experience combines dolphin watching, snorkeling, lunch,...
$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...
$59

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

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...
$118

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

Join a small group Waikiki snorkel tour with a guarantee: if you don’t see turtles, book again for free. With only 6 passengers on our...
$72

