Kauai: Things To Do

Kauai’s activity list is dominated by its natural landscape rather than built attractions. The island’s two headline experiences — the Na Pali Coast and Waimea Canyon — exist nowhere else in the United States. The supporting cast includes some of the best helicopter flying in the Pacific, excellent north shore snorkeling in summer, kayaking, surfing, and one of the most dramatic coastal hikes in the country. This guide covers all the main activities with current fees and logistics as of 2026.

Na Pali Coast

The 17-mile Na Pali Coast between Ke’e Beach and Polihale has no road access. Reaching it requires a boat, a helicopter, or a trail. Each approach reveals a different version of the same cliffs.

Boat tours — Year-round, operating from Port Allen (south coast) and, in summer, from Hanalei. Power catamaran tours cover the full cliff line, typically including snorkeling stops along the coast. Duration approximately 5 hours; approximately $140–180/adult as of 2026. Operators including Blue Dolphin Charters, Captain Andy’s, and Na Pali Catamaran are the most frequently reviewed. Morning tours generally have calmer seas; afternoon tours sometimes encounter stronger wind. Book at least one week in advance in peak season.

Helicopter — The fastest and most complete view of the Na Pali, the interior of Waimea Canyon, and the crater of Mount Wai’ale’ale (one of the wettest places on Earth, rarely visible from the ground). Doors-on tours approximately 45 minutes, approximately $250/person; doors-off tours approximately 50 minutes, approximately $350/person as of 2026. Blue Hawaiian Helicopters, Jack Harter Helicopters, and Air Maui (Kauai operations) are the established operators. Tours cancel in poor visibility — cancellation policies vary but most allow rescheduling. Book as far in advance as possible.

Kalalau Trail — 11 miles from Ke’e Beach (end of the north shore road) to Kalalau Valley. The first 2 miles to Hanakapi’ai Beach is a moderate day hike (no camping permit needed for this section). The beach itself is only swimmable in summer — strong shore break in winter. The full trail to Kalalau Valley requires a camping permit ($25/person/night) booked through camping.ehawaii.gov — competitive, especially for summer weekends, and should be booked 60–90 days out. Note: day hiking beyond Hanakapi’ai (mile 2) is not permitted without a camping permit.

Parking at Ke’e Beach requires advance reservation at gostateparks.hawaii.gov (approximately $10/vehicle; walk-in access is technically available at the trail’s start via a short walk from the road, but confirmed spots are limited — book early).

Sea kayaking (seasonal) — From May through September, guided Na Pali kayak tours (full day, approximately $160–220/person) put in at Ke’e Beach and paddle the coast southward, including the Miloli’i and Nualolo Kai sea caves only accessible by water. Winter swells (October–April) make the coast dangerous for kayaking. Operators include Kauai Sea Tours and Kayak Kauai. Physical fitness is required — the paddle runs 15+ miles over the course of the day.

Waimea Canyon State Park

Highway 550 above Waimea. The drive to the canyon from Waimea town takes approximately 20–30 minutes, climbing steadily through eucalyptus and sugarcane terrain before opening onto the canyon rim. The main Waimea Canyon Lookout (approximately 3,600 feet) gives the best broad view of the 14-mile canyon. Continuing up Highway 550 to the Kalalau Lookout (approximately 4,000 feet) provides the only land-accessible view down the Na Pali Coast cliffs to the ocean.

Entry to the viewpoints is free. Allow two to three hours for the drive with stops at multiple lookouts. Traffic on the single road can back up at peak midday on weekdays and weekends.

Kokee State Park — At the top of Highway 550, adjacent to the canyon overlooks. The park has approximately 45 miles of hiking trails, a natural history museum (open daily 9am–4pm, small donation), and the start of the Pihea Trail — a 3.7-mile trail along the rim between Kalalau Lookout and the Alaka’i Swamp, one of the highest wetland ecosystems in the Pacific. The Alaka’i Swamp Trail itself is a 2-mile boardwalk through cloud forest to an overlook with valley views. Muddy year-round — waterproof footwear required.

North Shore Snorkeling and Beaches

Tunnels Beach (Makua Beach) — Near the end of the north shore road. One of the best shore snorkel sites in Hawaii in summer conditions (May–September) — a large circular reef with significant coral cover, high fish density, and regular green sea turtle sightings. Access via a short walk from roadside parking; arrive by 7am for reliable parking. Winter swells make this site dangerous — snorkel only in confirmed calm conditions.

Ke’e Beach — The terminus of Highway 56 and the Kalalau trailhead. A sheltered reef bay with good snorkeling when calm. Same parking reservation system applies (gostateparks.hawaii.gov, approximately $10/vehicle). Can be crowded midday.

Anini Beach — Off Anini Road, between Princeville and Kilauea. A long, shallow lagoon protected by Kauai’s largest fringing reef. Calm and protected year-round; suitable for children and less confident swimmers. No facilities other than picnic tables. Windsurfers and kiteboarders use the lagoon regularly in trade wind conditions.

South Shore Snorkeling

Poipu Beach Park — The main public beach in the Poipu resort area. Good snorkeling on the left (west) side of the beach around the lava rocks. Hawaiian monk seals haul out here regularly — one of the more reliable spots in Kauai to observe them (maintain 50-foot distance; monk seals are critically endangered and federally protected). No entry fee.

Spouting Horn Beach Park — Off Lawai Road, Poipu. A lava blowhole that shoots seawater up to 50 feet on each incoming set. Five minutes of observation is sufficient; it is reliably dramatic in medium to large south swells. Free entry and parking. Vendors sell Niihau shell lei in the adjacent parking area.

Kayaking — Wailua River

The Wailua River — the only navigable river in Hawaii — empties on the east coast near Wailua. Kayaking the river is a half-day trip that passes through rainforest to the Secret Falls (Uluwehi Falls) — a 120-foot waterfall at the end of a short hike from the river bank. State regulations require using a licensed tour operator for commercial kayak trips on the Wailua River; self-guided rental kayaks are technically permitted but tour operators have exclusive access to the falls trail. Half-day guided tours approximately $50–80/person as of 2026. Operators include Kayak Kauai, Ali’i Kayaks, and Wailua Kayak and Canoe.

Surfing

Poipu Beach and Kalapaki Beach (Lihue) are the most practical surf options for visitors. Both have moderate, learnable conditions in typical summer swells and offer surf schools with beginners’ group lessons for approximately $80–120/person for a two-hour session as of 2026. The north shore (Hanalei, Haena) has powerful winter surf that is not suitable for beginners from October through March.

Kilauea Point National Wildlife Refuge

Kilauea Lighthouse Rd, Kilauea. The northernmost point of the main Hawaiian islands. The 1913 lighthouse stands on a cliff above the ocean; the surrounding refuge is one of the best seabird observation sites in Hawaii — nesting Laysan albatross (December–July), red-footed boobies, great frigatebirds, and Nene (Hawaiian geese) are all present. Entry approximately $10/adult as of 2026; free for children under 15. Open Tuesday–Saturday 10am–4pm. Book timed entry via recreation.gov — the parking lot is small and fills on busy mornings.

Limahuli Garden

5-8291 Kuhio Hwy, Haena (near Ke’e Beach). A National Tropical Botanical Garden site in a valley surrounded by high green peaks. Taro cultivation terraces dating back to early Hawaiian settlement, native Hawaiian plants, and views of the Na Pali cliffs overhead. Self-guided tours approximately $30/adult; guided tours approximately $50/adult as of 2026. Open Tuesday–Friday 9am–4pm, limited Saturday hours. Advance reservation recommended.

Practical Notes

• Na Pali access timing: Boat tours are available year-round from the south coast (Port Allen). North shore kayak tours are May–September only. Helicopter tours operate year-round but cancel frequently in winter rain and cloud.
• North shore road: Highway 56 north of Princeville can be slow — single-lane bridges, narrow curves, and summer traffic. Allow extra time for north shore drives.
• Rain on the north shore: Princeville and Hanalei receive significantly more rain than Poipu. A cloud cover morning can clear by noon; it can also remain overcast all day. Pack accordingly.
• Monk seals and sea turtles: Both are protected species. Federal law requires a 50-foot distance from monk seals and a 10-foot distance from sea turtles on beaches and in the water.