Oahu is a standout for snorkeling experiences thanks to its clear waters, abundant marine life, and diverse underwater landscapes. Whether you’re paddling in shallow reefs or cruising on a private boat to secluded sandbars, Oahu offers something for every type of snorkeler. We especially love the full-day Oahu’s North Shore Circle Island & Snorkeling w/ Turtles tour for its comprehensive coverage of the island’s main sights plus the chance to snorkel with Hawaiian green sea turtles in their natural habitat. For those seeking a more relaxed experience, the Kaneohe Sandbar Snorkeling Tours combine scenic boat rides with time in calm waters teeming with fish and turtles.
In this list, you’ll find full-day excursions, intimate small-group tours, scenic boat trips, and even private charters—all highlighting Oahu’s vibrant underwater world. Each offers a unique way to enjoy Hawaii’s marine tapestry, whether you’re a first-timer or a seasoned snorkeler.
1. Full day Oahu’s North Shore Circle Island & Snorkeling w/ Turtles
At number 1, this full-day circle island tour hits the sweet spot for travelers who want to see as much as possible in one day. The tour covers iconic sights like Diamond Head, Makapu’u Beach, the Halona Blowhole, and the Dole Plantation, making it perfect for those with limited time. What makes this tour stand out is the chance to snorkel in waters filled with Hawaiian green sea turtles on the North Shore—an experience many visitors cherish. The tour includes hassle-free hotel pickup and drop-off from Waikiki, which is a big plus, especially if you’re tired after a day of sightseeing. The reviews are glowing, with a perfect 5.0 rating from over 600 travelers, praising the knowledgeable guides and the variety of scenic stops. This is ideal if you want a comprehensive, stress-free way to soak up Oahu’s natural and cultural highlights in one go. Bottom line: Great for busy travelers who want it all, with the bonus of turtle sightings.
2. Kaneohe Sandbar Snorkeling Tour – 2nd Tour
Second on our list is the Kaneohe Sandbar Snorkeling Tour, a 2-hour 45-minute boat adventure that visits one of Oahu’s most beautiful spots. The sandbar is famous for its shallow waters, perfect for swimming, relaxing, and spotting sea turtles and colorful fish. The tour includes all necessary equipment like snorkels and paddleboards, so you can float around or paddle in the clear, calm waters. The crew is known for their friendly, attentive service, and reviews highlight how fun and helpful they are. Snacking is included, making it a great quick escape from the island’s busy beaches. This tour appeals to those who want a short but memorable marine experience with less walking or hiking. Bottom line: Perfect for families or first-timers who want a stress-free, scenic boat ride combined with good snorkeling.
3. Snorkeling in Waikiki Many Fish All Levels Free Video & Pics!
Third, for beginners or those short on time, this Waikiki snorkeling tour offers a quick hour exploring the reef just off Kalākaua Avenue. Its relaxed pace and small group size mean you get personalized attention, and the abundance of fish makes it an ideal first snorkel for children or nervous swimmers. Equipment is provided, and you’ll receive free photos and videos so you can relive the colorful underwater world later. The reviews emphasize how well-organized and friendly the guides are, making it a safe and memorable experience for all skill levels. This tour is best suited for those with limited time or who want a straightforward, no-fuss introduction to Oahu’s marine life. Bottom line: A perfect quick intro for beginners who want quality without the long day.
4. Oahu: Turtle Canyon Snorkeling Boat Tour
Number 4 is the Turtle Canyon Boat Tour, a 2-hour trip ideal for wildlife lovers. The boat is a comfortable 38-foot vessel, equipped with high-end gear, and takes you to one of Oahu’s most famous turtle habitats. You’ll snorkel through vibrant coral reefs and have plenty of chances to see sea turtles up close, often at a popular turtle cleaning station. The crew provides snacks, fresh fruit, and cold drinks, making it a relaxing outing. Many reviews mention the thrill of spotting turtles and schools of tropical fish. This tour is well-suited for anyone who wants a focused, quality wildlife experience with the convenience of a shorter trip. Bottom line: A solid choice for turtle enthusiasts and those who want a relaxed, scenic snorkel.
5. Private Catamaran Cruise and Snorkeling Tour in Honolulu
Number 5 offers a separate level of exclusivity: a private catamaran cruise perfect for groups up to six. Your own crew takes you along Oahu’s east coast, with stops to see wildlife like turtles, dolphins, and possibly whales, depending on the season. The boat features a private, uncrowded setting, with opportunities to jump off for swimming or snorkeling in secluded spots. Many reviews praise the friendly staff and the personalized experience, with some calling it “unforgettable.” This is a pricier option but offers unmatched privacy and tailored service. It’s ideal for honeymoons, special occasions, or travelers who want a luxurious and intimate adventure. Bottom line: Best for those seeking an exclusive, customizable experience.
6. Hawaii Snorkeling with Turtles Boat Tour in Waikiki
Next, the Hawaii Snorkeling with Turtles Boat Tour combines a scenic boat ride with the excitement of swimming with green sea turtles. Departing from Waikiki, it offers high-end gear and naturalist guides who help spot marine life. The boat features amenities like a bathroom, bar, and plenty of shade, making it comfortable for the entire family. Visitors often mention seeing schools of tropical fish and even dolphins or whales outside the season. The trip lasts around 2.5 hours, balancing time on the water with ample snorkeling. It suits families, couples, or anyone wanting a relaxed, well-supported adventure. Bottom line: A reliable choice for a fun, educational, turtle-focused boat trip.
7. Oahu Dolphin Watch Cruise with Waterslide & Snorkeling
Number 7 delivers a multi-faceted boat experience including dolphin watching, snorkeling, and onboard fun like a waterslide. The 3-hour cruise features a 21-foot water slide, paddleboards, and snorkeling gear, plus a delicious lunch with locally made turkey sandwiches or veggie wraps. The crew is praised for their friendliness and ability to make everyone feel comfortable, even beginners. Many reviews mention the thrill of spotting dolphins and swimming alongside colorful fish and turtles. This trip is perfect for families and adventure-seekers who want a full day of water fun in a lively atmosphere. Bottom line: Great for active travelers wanting a mix of wildlife viewing and excitement.
8. Hanauma Bay Guided Snorkeling Tour with Transportation
Number 8 is the popular Hanauma Bay Guided Tour, offering a 4-hour guided experience with transportation included. The bay is famous for its coral reefs and abundant marine life, including sea turtles, and is a must-see for snorkelers. The tour guarantees entry without the need for reservations, and guides provide expert instruction tailored for all skill levels. Many reviews highlight the quality of the guides and the opportunity to see an impressive variety of marine creatures. It’s ideal for travelers who want an educational, hassle-free day at one of Hawaii’s top snorkeling spots. Bottom line: Excellent value for a world-class snorkeling experience with expert guidance.
9. Private Snorkeling and Wildlife on The Adventure Boat
Number 9 is a private, exclusive snorkeling and wildlife tour that caters to up to six people. This fast, personalized boat takes you farther along the coast, with opportunities to see sea turtles, dolphins, and even whales in season. Besides wildlife, you can snorkel in prime spots, all while enjoying snacks and the company of knowledgeable crew members. The reviews emphasize how attentive and flexible the crew is, making it a top choice for those wanting a tailored, intimate adventure. Since it’s private, you can customize the experience to your interests. Bottom line: Perfect for experienced snorkelers and wildlife lovers seeking privacy and adventure.
10. Waikiki Turtle Canyon Snorkeling with Hula Show
Number 10 offers a fun mix of snorkeling and cultural entertainment with the Turtle Canyon tour. The boat departs from Honolulu, and after snorkeling with turtles, you can enjoy a traditional Hula show and lunch onboard. The crew provides all gear, and reviews mention the chance to see turtles, dolphins, and even whales if you’re lucky. The inclusive atmosphere makes it suitable for families or couples wanting a cultural touch with their marine adventure. The tour length is about 2 hours, making it ideal for a half-day outing. Bottom line: Great for those who want a lively, family-friendly experience with cultural entertainment.
11. Waikiki small group turtle snorkeling & sailing
The small group snorkeling tour departs early with a sunrise over Diamond Head. This small-group experience is praised for its personal touch and the chance to see multiple sea turtles and colorful reef fish. Guides like Tony and Abe share their local knowledge, making the excursion educational and engaging. The quieter atmosphere means fewer boats and more space to enjoy the marine life. Perfect for early risers, couples, or those who prefer intimacy over large tours. Many mention the excellent service and the opportunity to relax and explore at their own pace. Bottom line: Ideal for nature lovers seeking a peaceful, personalized experience.
12. Waikiki Green Sea Turtle Snorkeling Tour – Boat Excursion
Number 12 is a comfortable boat tour offering a chance to snorkel near green sea turtles. The 50-foot catamaran includes a full bar, restrooms, and shaded areas, making it suitable for families or those wanting comfort and convenience. The crew helps with beginner instruction, and the trip typically includes sightings of reef fish, dolphins, and whales in season. The reviews highlight how friendly and professional the crew is, and many mention how memorable the turtle sightings are. This tour suits travelers looking for a relaxing, well-supported day on the water. Bottom line: Reliable, comfortable, and family-friendly.
13. Kaneohe Sandbar Snorkeling Tour – 1st Tour
The Kaneohe Sandbar Tour offers a 2-hour 45-minute journey to a stunning sandbar with excellent snorkeling and paddleboarding. The highlight is the chance to see turtles at Turtle Reef, and the relaxed pace allows plenty of time to enjoy the scenery and marine life. Many reviews praise the friendly crew and the beautiful views of the Ko’olau Mountains. The included snacks and soft drinks make it a comfortable outing for families or solo travelers. It’s well-suited for those who want a scenic, less crowded experience with a focus on wildlife and relaxation. Bottom line: A scenic, friendly tour for water-loving travelers.
14. 5 in 1 Deluxe Cruise: Turtle Snorkeling, Activities and Pick-Up
Number 14 offers a multi-activity 5-in-1 cruise featuring snorkeling, paddleboarding, kayaking, and wildlife spotting. The 3-hour trip departs from Kewalo Basin Harbor, with all gear provided and refreshments onboard. Many reviews commend the smooth boat ride and the chance to see sea turtles, dolphins, and other marine life. The variety of activities makes it a good choice for mixed groups with different interests or for those wanting a full water day. It’s a budget-friendly option with high value for what’s included. Bottom line: Versatile and fun for active travelers wanting multiple experiences.
15. Oahu: Honolulu Turtle Canyon Snorkeling Tour
The Honolulu Turtle Canyon tour is a 3-hour guided cruise that highlights the chance to swim with turtles in one of Oahu’s most popular spots. The tour offers great coastal views and natural encounters with marine life. Many reviews note the friendly crew and the spectacular opportunity to see turtles, sharks, stingrays, and octopus. It’s a good pick for travelers staying in Waikiki who want an easy, guided experience with wildlife in a shallow, safe environment. The focus on education and the scenic backdrop make it perfect for families and first-timers alike. Bottom line: A reliable, engaging option to see diverse marine creatures.
16. Waikiki: Honolulu Beginner Snorkeling Tour with Videos
Finally, the Waikiki beginner snorkeling offers a relaxed 1.5-hour experience tailored for newcomers. The tour explores the Marine Lagoon, abundant with colorful fish, and includes personalized videos of your adventure. It’s designed for those who want a comfortable, straightforward intro to snorkeling without feeling overwhelmed. Many reviews emphasize the helpful guides and the chance to see plenty of marine life even if you’re new to the water. This is perfect for families with children, seniors, or anyone hesitant about snorkeling but eager to try. Bottom line: An excellent, low-pressure way to get your fins wet and see Hawaii’s underwater world.
How to Choose the Right Snorkeling Experience in Oahu
When selecting a snorkeling tour, consider your budget, time constraints, and interests. For example, if you want a comprehensive day with multiple sights and turtle encounters, the Full day North Shore tour offers excellent value. If you prefer a more intimate or luxurious experience, the private catamaran or private boat are perfect options. For those on a tight schedule, quick tours like Waikiki’s Many Fish All Levels or Hanauma Bay provide great value in a short time. Think about your fitness level, whether you want guided or self-led snorkeling, and if you’re interested in wildlife, cultural shows, or scenic boat rides. Book early during peak seasons (summer and winter holidays) to secure your spot.
Oahu’s snorkeling options range from quick, beginner-friendly tours to full-day adventures filled with wildlife, scenic views, and cultural experiences. If you’re looking for a relaxed, educational trip, the guided Hanauma Bay tour is hard to beat. For a luxury experience, consider a private boat cruise. And if your goal is to see sea turtles in their natural environment, most tours mentioned here will deliver. Whatever your style, booking in advance ensures you don’t miss out on these underwater treasures. Now, get ready to don those fins and dive into Hawaii’s vibrant marine world—your best underwater adventure awaits.