The Ultimate Guide to Big Island Tours
The Big Island of Hawaii is the largest and most geographically diverse island in the Hawaiian chain. From the snow-capped summit of Mauna Kea to the active lava flows of Kilauea, from the lush rainforests of Hilo to the sun-drenched Kona Coast, this island packs an astounding variety of experiences into one destination.
We've curated the 15 best tours and activities on the Big Island for 2026, covering ocean adventures, volcano experiences, cultural activities, and more. Whether you're a first-time visitor or a returning Hawaii enthusiast, these are the experiences you won't want to miss.
Ocean Adventures
1. Manta Ray Night Snorkel
The undisputed number-one tour on the Big Island. Float in the warm Pacific at night while enormous manta rays glide beneath you, attracted by underwater lights. This is a truly once-in-a-lifetime wildlife encounter that is unique to the Kona Coast. Book the Manta Magic Night Snorkel for an unforgettable experience with an experienced crew and small group sizes.
2. Captain Cook Monument Snorkel (Kealakekua Bay)
The best snorkeling on the Big Island, and arguably in all of Hawaii. This protected marine sanctuary has pristine coral reefs, incredible visibility, and abundant marine life including spinner dolphins. Only accessible by boat or a challenging hike. The Captain Cook Monument Snorkel Tour is the best way to experience this bucket-list spot.
3. Whale Watching (December - April)
During winter months, thousands of humpback whales migrate to Hawaii's warm waters. The calm, clear seas off the Kona Coast provide exceptional viewing conditions. Watch these magnificent creatures breach, tail-slap, and spy-hop from the comfort of a catamaran or zodiac boat.
4. Dolphin Watching & Snorkel Tour
Hawaiian spinner dolphins are a regular sight along the Kona Coast. Morning tours cruise the coastline to find dolphin pods, then stop at a pristine reef for snorkeling. It's an ideal combination of wildlife watching and ocean fun.
5. Scuba Diving on the Kona Coast
With calm, clear waters and abundant marine life, Kona is one of the best diving destinations in the Pacific. Highlights include the manta night dive, lava tube swim-throughs, and encounters with everything from reef fish to pelagic species. Options are available for both certified divers and discover scuba participants.
Volcano & Nature Experiences
6. Hawaii Volcanoes National Park Tour
Home to Kilauea, one of the world's most active volcanoes, this UNESCO World Heritage Site is an absolute must-visit. Guided tours typically include the Kilauea Visitor Center, Thurston Lava Tube, steam vents, the Halema'uma'u crater overlook, and the Chain of Craters Road. Some tours include hikes across recent lava flows for an up-close look at the volcanic landscape.
7. Mauna Kea Stargazing
At nearly 14,000 feet, Mauna Kea is one of the best places on Earth for stargazing. Guided tours typically stop at the Visitor Information Station (9,200 ft) where conditions are excellent and altitude is manageable. Professional telescopes reveal stunning views of planets, nebulae, star clusters, and the Milky Way in incredible detail.
8. Waipio Valley Tour
Known as the "Valley of the Kings," Waipio Valley is a dramatic, mile-wide valley with 2,000-foot cliffs, a black sand beach, and lush taro fields. The road down is one of the steepest in Hawaii. Guided tours by 4WD vehicle or horseback reveal the valley's history, waterfalls, and breathtaking scenery.
Water Sports & Adventure
9. Sunset Sailing Cruise
There's nothing quite like watching the sun sink into the Pacific from the deck of a sailboat. Kona Coast sunset cruises offer drinks, appetizers, and sometimes dinner as you sail along the rugged volcanic coastline. The golden hour light on the palm-fringed shore is absolutely magical.
10. Kayak & Snorkel at Kealakekua Bay
For the more adventurous, kayaking across Kealakekua Bay to the Captain Cook Monument is a rewarding self-guided experience. Guided kayak tours include all equipment, safety instruction, and insider knowledge about the best snorkeling spots in the bay.
11. Deep Sea Fishing Charter
The Kona Coast is the "Marlin Capital of the World." The deep, warm waters just offshore attract massive Pacific blue marlin, yellowfin tuna, mahi-mahi, and more. Half-day and full-day charters cater to all experience levels, from first-timers to serious sport fishers.
Cultural & Unique Experiences
12. Kona Coffee Farm Tour
The volcanic slopes above Kailua-Kona produce world-famous Kona Coffee. Dozens of family farms offer tours showing the full process from cherry to cup, with generous tastings of some of the world's finest brews. Learn about the unique terroir that makes Kona Coffee so special.
13. Traditional Hawaiian Luau
A Hawaiian luau is more than dinner and a show — it's a celebration of Polynesian culture. The Big Island's best luaus feature traditional hula, fire knife dancing, live music, and a feast of Hawaiian favorites including kalua pig cooked underground in an imu oven.
14. Helicopter Tour of the Big Island
See the Big Island's incredible diversity from the air. Helicopter tours cover active volcanic craters, towering waterfalls, lush valleys, and rugged coastline that's inaccessible by road. A doors-off option adds an extra thrill and better photography opportunities.
15. Night Snorkel or Dive with Manta Rays
So incredible it deserves a second mention — the manta ray experience can also be done as a scuba dive for certified divers. Sitting on the ocean floor looking up as mantas barrel-roll above you is a perspective that's hard to describe in words.
Planning Tips
- Book in advance: Popular tours (especially manta ray snorkels and whale watching) sell out quickly. Reserve at least a week ahead during peak season.
- Plan for both sides: The Big Island has two distinct coasts. Spend time on the Kona side (sunny, dry) and the Hilo side (lush, rainy) for the full experience.
- Check weather and conditions: Ocean conditions can vary. Morning activities on the Kona Coast tend to have the calmest water.
- Look for deals: Check our deals page for exclusive savings on select tours.
Start Planning Your Big Island Adventure
The Big Island of Hawaii is a destination that truly has it all. From underwater encounters with manta rays to standing on the edge of an active volcano, these 15 tours and activities represent the very best the island has to offer.
Browse all Big Island tours and activities and start building your perfect Hawaiian itinerary.
