Add dates

Oahu Ecotourism

Our most recommended Oahu Ecotourism

From Hawaii: Historical Dinner Cruise Tour to Kealakekua Bay

1. From Hawaii: Historical Dinner Cruise Tour to Kealakekua Bay

Step aboard and step back in time. Hop aboard a sunset dinner cruise in Kona for an enchanting Hawaiian history lesson from the experts. This family adventure departs from the Kailua Pier and is narrated by a local historian tour guide, who will reveal secrets, tell stories, and share legends related to the numerous landmarks along the 12 miles of magnificent Kona coastline. Unwind while you admire Captain Cook’s Monument at Historical Kealakekua Bay (only accessible by boat or hiking) with a complimentary cocktail from a fully stocked, premium bar. Begin your delicious dinner starting with an appetizer of Mauna Loa Big Island Macadamia Nuts (Vegan/GF). Then, enjoy a salad starter of Kealaola Farm mixed salad greens, Waimea grape tomatoes, Japanese cucumber, and red onion (Vegan/GF), served with house-made Maui Onion vinaigrette dressing (Vegan/GF). For your main course, choose the Thai coconut curry with Hamakua sweet potatoes, Hawaiian breadfruit, carrots, and bell peppers (Vegan/GF). Or, opt for steamed jasmine rice (Vegan/GF) with Kiawe mango barbecue pork short ribs served with papaya salsa (GF) and island-baked coconut dinner rolls served with butter (Vegetarian). Your dessert is a cheesecake with a local Lilikoi glaze (Vegetarian). Keep an eye out for dolphins, turtles, manta rays, and seasonal humpback whales throughout the evening. Enjoy live music from some of the Big Island's best entertainers performing slack-key Hawaiian Style music. Catch the sunset on the water and make sure to look for the famous Green Flash, a fleeting glimmer of intense emerald light that appears on the horizon just after sunset. Other highlights include the Ahu’ena Heiau, the Holua Slide, and the famous Kuamo’o Battlefield, just to name a few.

Oahu: Eco-Friendly West Oahu Snorkel Sail with Dolphins

2. Oahu: Eco-Friendly West Oahu Snorkel Sail with Dolphins

Experience Hawaii's unparalleled snorkeling with this cruise from Oahu. Look for Hawaiian spinner dolphins and tropical fish. Savor a mouth-watering breakfast and lunch onboard and relax with two beverages from the bar and unlimited sodas and juices.  Board the boat and set sail for the turquoise waters of the Ko Olina coast. Keep your eyes open for playful dolphins that like to jump and play in the wake of the boat. Enjoy a tasty continental breakfast on your way to your snorkeling spot. Ride on an eco-friendly sailboat, geared towards dolphin preservation and equipped with the finest of amenities, including 2 large restrooms and a fresh-water shower. There's plenty of shade on the deck, as well as tables and seating at the bar. Sip on two complimentary drinks from the bar and have the chance to purchase more as you go. Stay hydrated with unlimited non-alcoholic drinks all day long. Hop into the crystal-clear water and uncover a hidden world of vibrantly colored fish and corals. Work up an appetite and sit down to a picnic lunch on the boat's comfy deck tables. Return to your meeting point at the end of your cruise.

Oahu: Eco-Friendly West Coast Whale Watching Cruise

3. Oahu: Eco-Friendly West Coast Whale Watching Cruise

Look for whales in their natural habitat aboard a beautiful catamaran or mono-hull powerboat. Set sail from Waianae Harbor and cruise the shallow waters off the west coast of Oahu in comfort. Soak up the fantastic weather, just as the warm waters surrounding the main islands attract humpback whales in large numbers. Scientists estimate that two-thirds of the entire humpback whale population of the North Pacific travel over 3,000 miles from the Gulf of Alaska to Hawaii in order to breed, calve, and nurse their young. Get served complimentary sodas, chips, and cookies as you look for the magnificent creatures frolicking off the shores from December to May.

Honolulu: Waikiki Submarine Tour with Commentary

4. Honolulu: Waikiki Submarine Tour with Commentary

Climb aboard Atlantis XIV, the world's largest hi-tech passenger submarine which holds a whopping 64 passengers—that's 16 more people compared to the smaller 48-passenger submarines. Dive 100 feet below the surface and experience Waikiki’s marine mysteries. Being in a submarine and descending to 100 feet underwater is an adventure in itself. Also get to see real marine life up close. The Atlantis Waikiki dive site is home to many Hawaiian fishes, coral, and turtles. Known for its quality and safety, Atlantis is an eye-opening experience that takes you beyond the classroom as you learn about coral, reef life, and submersibles while visiting sunken shipwrecks, airplanes, and other artificial reefs. Atlantis has a spacious air-conditioned interior, large viewports, and comfortable seating. The hi-tech 64-passenger large submarine offers an enhanced amount of personal space and viewports. 

Honolulu: Diamond Head Cruise with Drinks and Appetizers

5. Honolulu: Diamond Head Cruise with Drinks and Appetizers

Discover the beauty of the Diamond Head volcanic cone from the water on this sailing catamaran cruise from Honolulu. Watch the sunset and delight your senses with delicious local food and the fresh ocean air as you sail on a 65-foot catamaran.  Board the Honu Lani and sail out into the water. Enjoy unlimited non-alcoholic drinks and 2 alcoholic drinks. Take in the breathtaking landscape of the Hawaiian coast as you cruise along the shores of Waikiki.  Admire views of the Diamond Head volcanic cone and savor a delicious bento-style dinner with chilled beverages. Sailing south toward Diamond Head, you may even be so lucky as to glimpse the green flash as the sun slips below the horizon. Enjoy this peaceful evening with the ocean breeze in your hair for an authentic Waikiki experience.

Waikiki: Eco-Friendly Afternoon Whale Watching Trip

6. Waikiki: Eco-Friendly Afternoon Whale Watching Trip

Every December through to April, thousands of Humpback whales migrate to the warm waters of Hawaii. Come along and catch these beautiful mammals at their best on an exciting eco-friendly whale-watching excursion.   Set sail on a 53-foot sailing catamaran, passing the Waikiki coastline on your way. Enjoy soda on board as you search for these majestic creatures.  

From Hawaii: Eco-Friendly Snorkeling Experience with BBQ

7. From Hawaii: Eco-Friendly Snorkeling Experience with BBQ

Join a morning snorkeling and dolphin-watching cruise with paddleboards and kids' activities from Kailua-Kona and explore the underwater world off the coast of Hawaii. Enjoy a light breakfast, a barbecue lunch, and a full-service premium cash bar throughout your trip. Start with an early-morning departure and cruise ten miles down the spectacular Kona coastline to reach your snorkeling destination for the day, a protected marine sanctuary. As you travel, enjoy a light breakfast of tropical fruits, assorted pastries, bagels, juices, teas, and Kona coffee. Then, sit back and enjoy the boat's comfortable amenities, including a large shaded cabin with cushioned seating, 3 restrooms, and freshwater showers. Once you arrive at your snorkeling spot, get kitted out with your mask, fins, and snorkel. Prescription masks are also available. If you're new to snorkeling, take advantage of a short introduction to snorkeling offered by the lifeguard-trained crew. You'll also have access to a host of flotation toys, including noodles, vests, inner tubes, and more. Or, make use of the stand-up paddleboards available on board at no additional cost. A waterslide and high-dive platform also provide endless entertainment for the kids. Or, if you just feel like kicking back and doing nothing, check out the floating "relaxation station". Your crew will even swim your refreshments out to you at your station. And while you're exploring, having fun, or just unwinding, the crew will be preparing lunch. Once you're done snorkeling, belly up to a full-service premium cash bar, featuring a large selection of liquors, mixes, and local brews. Your Kona snorkeling cruise comes to an end with a return transfer back to the harbor in Kailua-Kona.

Oahu: 3-Hour Dolphin Watching & Snorkel Excursion in Waianae

8. Oahu: 3-Hour Dolphin Watching & Snorkel Excursion in Waianae

Embark on a wildlife-watching cruise aboard a 32-foot motorboat. Search for wild dolphins and whales off the coast of Oahu and learn about each species. Enjoy the opportunity to snorkel in unique spots and come face-to-face with the most vibrant reefs. Board your boat and head out on an exhilarating ocean ride. Hear about local marine life from the experienced crew as you navigate. Spot wild dolphins playing in turquoise waters and, during the winter months, enjoy the bonus of spotting humpback whales. Stop to snorkel in clear, protected bays that are teeming with sea life. Gaze at the fascinating ecosystem of Hawaii's reefs, including sea turtles and colorful fish. Hop back on board, sit back, and relax on your return trip.

From Honolulu: Waikiki Sunset and Cocktail Cruise

9. From Honolulu: Waikiki Sunset and Cocktail Cruise

Admire a spectacular sunset and take in the beautiful cityscape aboard a cruise with a full-service bar and a spacious lounge. Feel the Hawaiian breeze on your face from the open-air top deck. Travel along the striking Waikiki coastline all the way to Diamond Head and enjoy a welcome drink. Board your boat and receive your welcome drink before heading out to sea. Depart from the harbor and see iconic Oahu landmarks as you travel along the Waikiki coast toward Diamond Head and back. Watch the passing landscapes from the air-conditioned lounge with floor-to-ceiling windows. Sit back as you observe the colorful sunset from the water. Make the most of your experience by purchasing additional drinks and snacks from the onboard bar.

Waikiki Beach: Eco-Friendly Whale Watching Cruise

10. Waikiki Beach: Eco-Friendly Whale Watching Cruise

Enjoy a catamaran tour departing from Kewalo Basin Harbor and discover Humpback whales frolicking in their natural habitat on this cruise. Discover the Hawaiian Islands and enjoy snacks and drinks as you sail. Explore the shores of the main Hawaiian Islands, which are a favorite destination for humpback whales. See families of whales breach the water's surface, a spectacular sight to behold. As you ride along the waves, enjoy sodas, cookies, and chips as you watch for the whales. Enjoy the views from the double-deck power catamaran, a great vantage point for whale watching.

  • Guided tours
  • Water activities
  • Adventures
  • Day trips
27 activities found
Sort by:
Page 1 of 2

Frequently asked questions about Oahu

What top attractions are a must-see in Oahu?

Other Sightseeing Options in Oahu

Want to discover all there is to do in Oahu? Click here for a full list.

What people are saying about Oahu

Overall rating

4.8 / 5

based on 46 reviews

This trip was amazing!!! I saw a manta ray, 3 whales, an entire mega-pod of dolphins, flying fish, and coral fish. And the crew was incredible; they went above and beyond to ensure an excellent experience. I have never snorkeled before, but they were very patient, gave me a ton of guidance, and make the entire experience wonderful. I highly recommend this trip!

Parking was hard to come by if you aren’t staying in the area, but the tour was amazing! Lots of insight and engagement from the crew and learned a lot of neat facts. There’s no need for a jacket unless it’s cool out and pictures taken prior to boarding will cost about $50 if you want to keep the physical/digital copies.

Was a fantastic cruise with wonderful service and a very knowledgeable crew. We saw humpback whales breaching and followed about 3 whales throughout the cruise. Magical!

great evening with Greg and crew. sunset was awesome and we got to see a whale. only shortcoming was the food. Though good, it was not what we perceived as advertised.

The staff was excellent. They all were very helpful and friendly. Very enjoyable trip.