20 Best Things to Do on Kauai in 2026
Kauai is the oldest of the main Hawaiian islands and the least developed. That's the pitch and it's accurate. Where Oahu has high-rises and Maui has resort corridors, Kauai has 4,000-foot sea cliffs, a canyon that Mark Twain called the Grand Canyon of the Pacific, and a north shore that shuts down when it rains hard enough. No building on the island is taller than a coconut palm—that's actual law.
The result is an island where the scenery consistently outperforms the infrastructure. Restaurants close early, cell service disappears on the north shore, and the single highway backs up at rush hour. But the Na Pali Coast is legitimately one of the most dramatic landscapes on Earth, and Waimea Canyon is staggering in person. This guide covers the best of it with real prices.
Na Pali Coast & Ocean Adventures
1 Na Pali Coast Boat Tour
The Na Pali Coast is 17 miles of fluted emerald cliffs that rise 4,000 feet from the ocean. No road reaches it. A boat tour is the most popular way to see it—catamarans for comfort, zodiacs for up-close cave access. Morning departures from the west side (Port Allen) are calmer; afternoon return trips can get rough in winter.
Na Pali Coast Morning Catamaran Cruise
Holo Holo Charters runs a 5-hour morning catamaran along the full Na Pali Coast with snorkeling stop and lunch included. Departs Port Allen. Their 65-foot power catamaran is one of the more stable rides on the coast. Free cancellation 24 hours prior.
Duration: 5 hours • Operator: Holo Holo Charters • Departs: Port Allen
Check Availability →Na Pali Raft Expedition
Na Pali Explorer operates rigid-hull inflatable rafts that can enter sea caves and get closer to the cliffs than any catamaran. Wetter, bouncier ride—not for everyone, but the access is unmatched. Snorkel gear and lunch included. Departs Kikiaola Harbor on the west side.
Duration: 5 hours • Operator: Na Pali Explorer • Departs: West Side
Check Availability →2 Snorkeling at Tunnels Beach (Makua)
Tunnels Beach on the north shore has one of Kauai's best reefs—a network of lava tubes and caverns with excellent coral cover and fish density. Green sea turtles are common. The beach itself is gorgeous with Makana mountain as backdrop. Summer only for snorkeling; winter surf makes it dangerous. Parking is extremely limited—arrive before 8am or take the shuttle from Haena State Park.
3 Kayak the Wailua River
The Wailua River is the only navigable river in Hawaii. Guided kayak tours paddle upstream to a trailhead, then hike 1 mile through jungle to Secret Falls (Uluwehi Falls), an 80-foot waterfall with a swimming pool at the base. Total time is about 5 hours. Self-guided kayak rentals are also available if you know the route.
4 Deep Sea Fishing
Kauai's waters hold marlin, mahi-mahi, ahi tuna, and ono (wahoo). Charter boats run from Port Allen and Nawiliwili Harbor. Half-day trips are enough for most visitors; full-day trips head further offshore for bigger game.
Kauai Deep Sea Fishing Charter
Kauai Fishing Charters operates out of Nawiliwili Harbor with shared and private options. Tackle, bait, and gear included. They'll clean and bag your catch. Half-day and full-day available.
Duration: 4–8 hours • Operator: Kauai Fishing Charters • Departs: Nawiliwili
Check Availability →5 Poipu Beach Snorkeling & Monk Seals
Poipu Beach on the south shore is Kauai's most reliable snorkeling spot—protected from north swells and sunny when the rest of the island is raining. The reef on the left side of the beach has good coral and fish. Hawaiian monk seals (fewer than 1,500 exist) regularly haul out on the sand. If you see one, stay 50 feet back—they're federally protected and volunteers will enforce it.
Scenic & Land Adventures
6 Waimea Canyon
Waimea Canyon is 14 miles long, up to 3,600 feet deep, and improbably colorful—red soil, green vegetation, and waterfalls streaming down the walls. The main lookouts are along Waimea Canyon Drive (Highway 550). Waimea Canyon Lookout and Pu'u Hinahina Lookout are the two essential stops. Continue up to Kalalau Lookout for a view down to the Na Pali Coast from above—if it's not clouded over. Go early morning for best visibility.
7 Helicopter Tour
Kauai may be the single best island in Hawaii for a helicopter tour. 90% of the island is inaccessible by road, including the interior's Mount Waialeale—one of the wettest spots on Earth, with waterfalls cascading down its crater walls. A helicopter is the only way to see it. Tours fly over Na Pali Coast, Waimea Canyon, and the interior waterfalls in about 50–60 minutes.
Kauai Helicopter Tour – Mauna Loa
Mauna Loa Helicopter Tours flies 50-minute doors-off tours over Na Pali, Waimea Canyon, Mount Waialeale, and Manawaiopuna Falls (the Jurassic Park waterfall). Small group, narrated. One of Kauai's most experienced operators. Departs Lihue.
Duration: 50 minutes • Operator: Mauna Loa Helicopter Tours • Departs: Lihue
Check Availability →8 Kalalau Trail (Day Hike to Hanakapi'ai)
The full 11-mile Kalalau Trail along the Na Pali Coast requires an overnight permit and serious backcountry experience. But the first 2 miles to Hanakapi'ai Beach are a manageable day hike—steep and muddy, but the payoff is a remote beach backed by cliffs. Add 2 more miles inland to reach Hanakapi'ai Falls (300 feet). Permit required even for the day hike—reserve at gohaena.com. $5 per person plus $10 parking.
9 Wailua Falls
An 80-foot twin waterfall visible from a roadside lookout—no hiking required. It was the opening shot of Fantasy Island. Best after rain when both streams are flowing strong. Located off Ma'alo Road (Highway 583) north of Lihue. Quick stop, impressive payoff. Stay behind the railing—people have died climbing down to the base.
10 Spouting Horn
A natural blowhole on the south shore near Poipu where ocean surges force water through a lava tube and 50 feet into the air. Largest blasts happen during high surf. Free to visit, small parking lot. There's a row of local vendors selling jewelry and crafts. Worth 15 minutes.
11 Zipline Tours
Kauai's interior valleys and mountains make for genuinely scenic zipline courses—not just a thrill ride over a parking lot. Several operators run multi-line courses through former sugarcane land and rainforest. Lines up to half a mile long with views of mountains and waterfalls.
Kauai Backcountry Zipline Adventure
Kauai Backcountry Adventures runs a 7-line course through a former sugarcane plantation with mountain and valley views. Includes a swim in a natural mountain pool at the end. 3.5-hour experience total. Well-reviewed, good guides.
Duration: 3.5 hours • Operator: Kauai Backcountry Adventures • Departs: Lihue area
Towns & Culture
12 Hanalei Bay & Town
Hanalei Bay is a crescent-shaped bay on the north shore backed by emerald mountains. The bay itself is good for swimming, SUP, and surfing (beginners on the inside, experienced surfers on the outside break). Hanalei town is small—a few blocks of restaurants, shops, and food trucks. Tahiti Nui is the local bar with live music. The whole area has a relaxed vibe that Waikiki hasn't had since the 1970s.
13 Hanapepe Art Walk (Friday Nights)
Hanapepe is a small town on the west side that was the inspiration for Lilo & Stitch's town. Every Friday evening, galleries open late, food vendors set up, and live music plays. It's low-key and authentic—nothing corporate. The Hanapepe Swinging Bridge is worth crossing. Free.
14 Koloa Town & Old Sugar Mill
Koloa was the site of Hawaii's first successful sugar plantation (1835). The old stone chimney still stands. Today it's a small shopping and dining strip near Poipu—Koloa Fish Market for poke, Koloa Rum Company for tastings. Worth an hour between beach sessions.
15 Smith's Tropical Paradise Luau
Smith's has run a luau on their garden estate along the Wailua River for decades. It includes a garden tour, imu ceremony (underground pig roast), buffet dinner, and Polynesian show. Not the most polished luau in Hawaii, but one of the most genuine. The garden setting along the river is beautiful. Book directly—about $100–$115 per adult.
Hidden Gems & Beach Picks
16 Queen's Bath
A natural tide pool carved into lava rock on the north shore near Princeville. When seas are calm (summer), it's a dramatic swimming hole with ocean waves crashing just beyond the pool's edge. When seas are rough (winter), it's genuinely deadly—waves sweep people off the rocks. Check conditions before going and never turn your back to the ocean. The trail down is steep and slippery.
17 Kayak the Hanalei River
A mellow flatwater paddle through Hanalei National Wildlife Refuge with mountain views in every direction. No rapids, no ocean swells—suitable for beginners and families. Taro fields and waterbirds line the banks. Kayak rentals available in Hanalei town, about $50–$65 for a half day.
Hanalei River Kayak Rental
Kayak Hanalei provides self-guided kayak and SUP rentals on the Hanalei River. Includes safety briefing and route map. No experience needed—the river is flat and calm. Mountain views the entire way.
Duration: 3–4 hours • Operator: Kayak Hanalei • Location: Hanalei
Check Availability →18 Anini Beach
One of Kauai's calmest beaches, protected by a long reef that keeps waves out. Good for small kids, beginning snorkelers, and anyone who wants flat water. Located on the north shore between Kilauea and Princeville. Rarely crowded. Picnic facilities and showers available.
19 Kilauea Lighthouse & Wildlife Refuge
A historic lighthouse on Kauai's northernmost point with nesting seabirds—red-footed boobies, Laysan albatross, frigatebirds, and nene (Hawaiian state bird). Whale watching from the bluff in winter. The refuge charges $10 entry. Small but worthwhile, especially for birders.
20 Glass Beach, Ele'ele
A small beach near Port Allen where decades of wave action have tumbled discarded glass into smooth, colorful pebbles. Not a swimming beach—more of a 20-minute curiosity. The glass is less abundant than it once was (people take it), but it's still striking in morning light. Free, easy to find.
Explore All Kauai Tours
Browse verified Kauai tour operators with instant booking and free cancellation.
View Kauai Tours →Practical Tips
Rent a car. Non-negotiable on Kauai. There's no meaningful public transit and ride-share is sparse outside Lihue. A 4WD is not necessary for paved roads but helpful for Polihale access in dry conditions.
North vs. South: The south shore (Poipu) is sunnier and drier. The north shore (Hanalei, Princeville) is greener, more dramatic, and wetter. If you only have 3–4 days, base on the south side for reliability and day-trip to the north.
Weather: Kauai is the rainiest Hawaiian island. Mount Waialeale averages 450 inches of rain per year. That rain is what makes the island so green—and it usually falls in short bursts, not all-day storms. Don't cancel plans because of morning clouds.
How many days: Five days is ideal. Three days is rushed but doable if you prioritize Na Pali Coast (boat or helicopter), Waimea Canyon, and one beach day.
