The best things to do in Kauai reward a slower pace than the other Hawaiian islands, because this island has no road around it and its best places are spread across four distinct coasts. Plan one side per day, book the handful of places that need reservations, and swim south in winter while you watch the big surf up north. That simple plan covers almost everything worth doing here.
Key Highlights
- Kauai has no loop road, since the highway ends at Ke’e Beach in the north and Polihale in the west, so plan one coast per day.
- Haena State Park and the Kalalau Trail need reservations, and hiking past the two mile point on the Kalalau Trail is currently closed.
- Waimea Canyon and Kokee State Park charge nonresidents $5 per person for entry and $10 per vehicle for parking, valid at both parks.
- Winter means big surf on the North Shore, so treat Poipu and the South Shore as the swimming coast from roughly November to April.
- Five days is a good first visit, with Poipu or Princeville as a base, and Kapaa or Lihue as a central alternative.
Start with the shape of the island
Kauai is the Garden Isle. It is smaller, greener, and rainier than Oahu or Maui, and its interior is a roadless wilderness of canyons and rainforest. The regions divide it into the North Shore around Hanalei, the East Side around Kapaa and the Wailua River, Lihue and the airport area, the South Shore around Poipu, and the West Side around Waimea Canyon. Fly into Lihue Airport, rent a car, and treat that car as essential, since buses do not reach the trailheads, lookouts, and beaches that make the trip.
Driving times set the rhythm. Lihue Airport to Poipu runs about 25 to 30 minutes, to Princeville about 45 to 50 minutes, to Hanalei about 70 to 90 minutes, and to Waimea Canyon Lookout about 60 to 90 minutes. Add time for one lane bridges, Kapaa traffic, rain, and parking hunts. The Princeville and North Shore area works as a base for the north, while Poipu suits the south and west, and Kapaa or Lihue keeps every coast within reach.
Na Pali Coast: see it from the water or the air
The Na Pali Coast is the island’s signature sight, a wall of green cliffs, sea caves, and waterfalls with no road access at all. The best views come from a boat tour or a helicopter flight, not from a roadside pullout. Summer, roughly May through September, is the calmest window for boat tours, with the best sea cave access and snorkeling. Winter brings rougher seas, and south shore departures from Port Allen run year round but with a higher cancellation risk in winter. Morning departures are calmer than afternoon ones, and humpback whales pass through from December through April.
Boat tours vary widely in price and style, from large catamarans to small rafts that enter caves, so compare operators rather than trusting a single listed price. Helicopter tours give the fullest view of the coast and the interior valleys. If you fly, book an early morning flight for the clearest light and the calmest air.
Kalalau Trail and Haena State Park: reservations first, and a current closure
The Kalalau Trail runs 22 miles round trip from Haena State Park to Kalalau Beach, and it is rated difficult. The first two miles to Hanakapiai Beach make a popular day hike. Anyone going beyond Hanakapiai Valley must hold a valid overnight camping permit, priced at $35 per person per night for nonresidents and $25 for Hawaii residents, with a maximum of five nights, available 90 days in advance.
Day use reservations or a valid camping permit, plus parking reservations, are required to access the trail through Haena. Haena State Park reopened on October 15, 2026, with hours of 7 a.m. to 6:45 p.m. daily. Day hiking to Hanakapiai Beach, Valley, and Falls is open, but overnight camping and hiking past the two mile point along the Kalalau Trail remain closed until further notice, according to the Hawaii Division of Land and Natural Resources. Recheck that status before you travel, because it changes the whole hike. Nonresident entry at Haena is $5 per person, with children ages 3 and under free, and the October 2026 release lists out of state parking at $10 per vehicle, though at least one guide reports a higher figure, so confirm the parking total at checkout on Go Haena.
Do not swim at Hanakapiai Beach. The Division of Land and Natural Resources warns against it year round, citing dangerous rip currents, and notes that drownings occur there regularly. Ke’e Beach is a fine sunset and snorkeling spot in summer, but it follows the same winter surf rule as the rest of the North Shore.
Waimea Canyon and Kokee State Park
Waimea Canyon, often called the Grand Canyon of the Pacific, runs about 10 miles long and drops more than 3,000 feet in places. The drive up Highway 550 from Waimea town passes Red Dirt Falls and a string of lookouts before reaching Kokee State Park and its views over Kalalau Valley from 4,000 feet. Go early, before cloud builds over the canyon, and fill the tank before the climb.
Both parks are open daily during daylight hours. Nonresident entry is $5 per person, with children ages 3 and under free, and Hawaii residents enter free with a Hawaii driver’s license or ID. Nonresident parking is $10 per vehicle, and parking tickets are valid for both Waimea Canyon and Kokee lots. One caution: the Division of Land and Natural Resources carried a July 2025 notice that Waimea Canyon Lookout would be closed for construction, with a January 2026 update saying Pu’u o Kila lookout has reopened. Check lookout status before you go. The Maui side of an island hopping trip pairs well with a canyon day if you are combining islands.
Poipu Beach and the South Shore
Poipu Beach is the island’s most reliable swimming beach, with lifeguards, a protected swimming area, and snorkeling over a reef that holds turtles and reef fish. It is the right winter swimming choice, though summer south swells can still roughen it, so always check flags and surf reports first. Nearby Spouting Horn, a lava tube that shoots seawater into the air, is a quick roadside stop best seen at higher surf, and Old Koloa Town gives the South Shore its plantation era main street, with shops and restaurants nearby.
Allerton Garden, in Lawai Valley near Poipu, is a landscape garden of tropical plants, sculpture, and film locations, visited on guided tours only. Tour times and prices change by season, so book ahead rather than turning up. Salt Pond Beach Park, west of Poipu toward Waimea, adds a calm family beach with a naturally protected pool area.
Hanalei Bay, Tunnels Beach, and the North Shore
Hanalei Bay is the North Shore’s postcard, a two mile crescent of sand backed by green mountains, with a historic pier, calm summer paddling, and winter surf that draws surfers from around the world. In winter, treat Hanalei as a surf watching beach, not a swimming beach, unless the surf report and the lifeguards say otherwise. Hanalei town is small and walkable, with food trucks, galleries, and shave ice stands that close early, so eat before dark.
Tunnels Beach, also called Makua Beach, is the North Shore’s best summer snorkeling spot when the surf is flat. In winter it is dangerous for swimming, and the same rule covers most North Shore beaches from roughly November to April. Anini Beach, east of Princeville, stays calmer than most North Shore beaches thanks to a long offshore reef, and Lydgate Beach Park on the East Side, with rock walled pools, is the safest family swimming bet when the north is rough.
Wailua River, Fern Grotto, and the East Side
The Wailua River is commonly described as Hawaii’s only navigable river, a claim guides repeat widely, and it is the center of the East Side’s best day out. Kayak trips paddle upriver to a trailhead for the hike to Secret Falls, also called Uluwehi Falls, a waterfall reached only by water and foot. Riverboat tours run to the Fern Grotto, a lava cave draped in ferns that once hosted Hawaiian royalty. Book ahead in summer.
On the roadside, Wailua Falls and Opaekaa Falls are easy viewpoint stops, and the Ke Ala Hele Makalae coastal path runs along the East Side for walking and cycling. Kapaa town, between Lihue and the North Shore, makes a good central base, with restaurants, shops, and a walkable main street. The Oahu side of a two island trip is a short flight away if you want to pair Kauai with Honolulu.
Kilauea Lighthouse and the northern tip
Kilauea Point National Wildlife Refuge sits on a 180 foot ocean bluff at the northernmost point of the main Hawaiian Islands. The Daniel K. Inouye Kilauea Point Lighthouse, completed in 1913, is listed on the National Register of Historic Places. The refuge is known for seabirds, nene geese, spinner dolphins, monk seals, and green sea turtles, and humpback whales may be viewed from October to April.
Reservations are required for visitors ages 16 and older. The refuge partner page lists Wednesday through Saturday, 10 a.m. to 4 p.m., with the gate closing to new arrivals at 3:30 p.m., entry of $10 for visitors ages 16 and older plus a $1 booking fee, and free entry for children under 16. The Fish and Wildlife Service page itself did not show hours or fees in the text checked for this guide, so confirm both on Recreation.gov before you go. Book the lighthouse for a morning, then continue to Hanalei Valley Lookout for the classic taro field view on the way to Hanalei town.
Food, luaus, and how many days
Kauai’s food scene is casual and early. Poke from a grocery or fish market, plate lunch from a food truck, shave ice in Hanalei or Kapaa, and dinner in Poipu or Princeville cover most days. Restaurants close early and book out in high season, so reserve dinners and carry snacks for canyon and trail days. Luaus run several nights a week, mostly in Poipu and the Lihue area, and they vary in price and scale, so compare what each includes before booking.
Five days is a good first visit: one day for the North Shore and Hanalei, one for Waimea Canyon and Kokee, one for the South Shore and Poipu, one for the Wailua River and East Side, and one for a Na Pali boat tour or helicopter flight. Seven days adds a second North Shore day, a Koke’e forest hike, and a slow beach day. The Kona side of the Big Island makes a natural second island if you have a longer trip.
Frequently Asked Questions
Do I need a reservation to hike the Kalalau Trail?
Yes for access through Haena. Nonresidents need a Haena entry or parking reservation through Go Haena, or a valid Napali Coast camping permit. A camping permit is required to go beyond Hanakapiai Valley, two miles in, and that section is currently closed.
Can I hike the full Kalalau Trail to Kalalau Beach right now?
No, not as of the October 13, 2026 reopening notice from the Hawaii Division of Land and Natural Resources. Day hiking to Hanakapiai Beach, Valley, and Falls is open, but overnight camping and hiking past the two mile point remain closed until further notice. Recheck the status before travel.
When is the best time to visit Kauai?
For calmer ocean conditions, visit in summer. For a mix of weather, value, and fewer crowds, the state tourism site points to spring or fall. Winter brings bigger waves, especially on the North Shore, but also humpback whales from December through April.
Can I swim at Hanalei Bay and Poipu Beach in winter?
Poipu on the South Shore is the safer winter swimming bet, with lifeguards and a protected area, but always check flags and surf reports first. Treat North Shore beaches, including Hanalei and Tunnels, as surf watching in winter, not swimming, when surf is up. Never swim at Hanakapiai Beach.
Do I need a reservation for Kilauea Lighthouse?
Yes if you are 16 or older. The refuge is open Wednesday through Saturday, 10 a.m. to 4 p.m., with last entry at 3:30 p.m. Entry is $10 for ages 16 and older plus a $1 booking fee, and children under 16 are free. Book through Recreation.gov and recheck hours before visiting.
Can I drive all the way around Kauai?
No. There is no road across the Na Pali Coast. The road ends at Ke’e Beach in the north and at Polihale in the west, so plan one side of the island per day and allow 60 to 90 minutes each way between major hubs such as Lihue and the North Shore or Waimea Canyon.
Kauai does not reward a checklist rushed in a day. Pick a coast, book the few things that need booking, swim where the season allows, and leave room for rain and road delays.