Kauai, known as the Garden Isle, features rugged cliffs, lush valleys, and peaceful beaches. This mix makes it one of Hawaii’s most stunning islands.
You can see the towering sea walls of the Na Pali Coast and the wide views of Waimea Canyon. Every corner offers a new scene to explore.
The best things to do in Kauai combine its natural wonders with activities that let you experience them up close.
You can take in the island’s beauty from the water, the air, or the trails that wind through forests and along the shore. Snorkeling in clear bays, hiking to hidden waterfalls, or kayaking along calm rivers each offers a different view of Kauai’s rich landscape.
Whether you want to relax on golden sand or seek out adventure in the mountains, Kauai has something for everyone. This guide highlights the top experiences, from marveling at the Na Pali Coast to exploring Waimea Canyon’s lookouts and enjoying the island’s famous beaches and waterfalls.
Marvel at the Na Pali Coast
The Na Pali Coast on Kauai’s north shore has steep green mountains, narrow valleys, and remote beaches. You can reach these beaches only by water or foot.
You may spot sea turtles, tropical fish, and seabirds in the clear Pacific waters along the rugged cliffs.
Take a Scenic Boat Tour
A boat tour lets you see the Na Pali Coast up close. Many tours leave from Port Allen or Hanalei and travel along 17 miles of shoreline cliffs.
You can view waterfalls cascading from mountains into the ocean. Boats often pass sea caves and small beaches, such as Kalalau Beach, that you cannot see from the road.
Some tours stop for snorkeling, letting you swim with turtles and see reef fish. Others offer sunset cruises for calmer seas and golden light on the mountains.
For more trip planning, see this guide to Na Pali Coast tours and activities.
Hike the Kalalau Trail
The Kalalau Trail runs 11 miles from Ke’e Beach to Kalalau Beach. It is the only land route along the Na Pali Coast and features steep climbs, narrow paths, and sweeping ocean views.
You will pass Hanakapiai Beach and Hanakapiai Falls within the first few miles. You need a permit to go beyond Hanakapiai Valley, and the full trail suits experienced hikers.
The path can be muddy and slippery, especially after rain. Wear sturdy shoes, carry plenty of water, and pace yourself for safety.
If you complete the full hike, you reach Kalalau Beach, a remote stretch of sand surrounded by cliffs. Learn more about the Kalalau Trail’s route and highlights.
Kayak Along the Cliffs
Kayaking the Na Pali Coast is a seasonal activity, usually offered in summer when the ocean is calmer. Most trips start at Haena or Polihale and cover long stretches of coastline.
You can enter sea caves, land on quiet beaches, and watch for dolphins or sea turtles swimming nearby. The slow pace gives you more time to enjoy the mountains and valleys.
This adventure requires good physical fitness, as the route can be more than 15 miles. Many outfitters offer guided trips with safety gear and lunch stops.
For inspiration, check out these Na Pali Coast kayaking options.
Explore Waimea Canyon and Lookouts
Kauai’s west side features rugged cliffs, deep valleys, and colorful rock formations. You can enjoy scenic drives, short walks to overlooks, and views of waterfalls and mountains.
Visit Waimea Canyon State Park
Waimea Canyon State Park features one of Kauai’s most famous landscapes. The canyon stretches about 14 miles long and reaches up to 3,600 feet deep, with layers of red, brown, and green volcanic rock.
You can drive the Waimea Canyon Drive to reach several lookout points. These stops are near parking areas for easy access.
The Waimea Canyon Lookout at mile marker 10 is a popular first stop. From here, you can see the wide canyon walls and spot waterfalls in the distance.
The park offers hiking trails for those who want to explore on foot. Some trails lead to closer views of streams and cliffs, while others connect to Kōkeʻe State Park for higher-elevation scenery.
Stop at Kalalau Lookout
Kalalau Lookout, in Kōkeʻe State Park, offers one of the most photographed views on Kauai. You can see the Kalalau Valley, steep mountains, and the blue Pacific Ocean from this point.
On clear days, the view stretches for miles. In cloudy weather, mist rolls in and out, revealing glimpses of the valley below.
You can reach the lookout by car, and a small parking area is nearby. The walk from the lot to the viewing platform is short.
Many travelers visit other lookouts along Waimea Canyon Road during a half-day or full-day trip.
Discover the Grand Canyon of the Pacific
Waimea Canyon is often called the Grand Canyon of the Pacific for its size and layered rock formations. While smaller than Arizona’s Grand Canyon, it has its own beauty with lush vegetation and frequent waterfalls after rain.
The canyon’s colors shift with the light, so morning and afternoon visits look different. Several viewpoints let you see both the canyon floor and the surrounding mountains.
In the rainy season, waterfalls cascade down the cliffs. Photographers often bring a tripod to capture the landscape’s depth and color.
Even without hiking, you can enjoy impressive views from roadside lookouts.
Experience Kauai’s Iconic Beaches and Water Activities
Kauai offers calm swimming spots, scenic snorkeling areas, and wide sandy shores. You can see marine life up close.
Some beaches have lifeguards, making them safer for families. Others are known for clear water and mountain views.
Relax at Poipu Beach
Poipu Beach is one of Kauai’s most popular family-friendly beaches. Its natural crescent shape and sheltered swimming area are protected by a reef.
Lifeguards are on duty daily, adding safety for swimmers. A shallow wading pool forms near the shore, making it ideal for young children.
The sand is soft, and picnic tables are nearby. You may see Hawaiian monk seals resting on the sand.
These endangered animals are protected, so keep a safe distance. Sea turtles also appear in the area, especially in the early morning or late afternoon.
Poipu Beach is easy to reach by car and has restrooms, showers, and parking. Its calm water, marine life, and amenities make it a convenient stop.
Snorkel at Tunnels Beach
Tunnels Beach, also called Makua Beach, is famous for its large coral reef and clear water. The reef creates calm inner areas for beginners and deeper sections for experienced snorkelers.
You can see colorful fish, sea turtles, and unique coral formations underwater. Many visitors bring their own gear, but rentals are available nearby.
The beach sits on Kauai’s north shore and offers a dramatic backdrop of green mountains. Parking is limited, so arrive early.
Tunnels Beach does not have lifeguards. Check ocean conditions before swimming, and snorkel in summer when waves are smaller.
Swim in Hanalei Bay
Hanalei Bay is a wide, two-mile stretch of sand. The water is calm in summer and has larger waves in winter.
You can swim, paddleboard, or try beginner surfing here. The bay is surrounded by green mountains and waterfalls, creating a scenic setting.
Public access points offer parking, restrooms, and showers. In the center of the bay, Hanalei Pier is a popular gathering spot.
Families often swim here because the water is shallow near the shore. Hanalei Bay’s gentle slope into the ocean makes it comfortable for swimmers of all ages.
On clear days, the view from the beach is one of the most photographed on the island.
Discover Kauai’s Waterfalls and Rivers
Kauai features scenic spots where you can see tall waterfalls, paddle along calm rivers, and explore lush valleys. Some locations are easy to reach by car, while others need a short hike or a guided tour.
See Wailua Falls
Wailua Falls is one of Kauai’s most photographed waterfalls. Near Lihue, it drops about 80 feet into a large pool below.
You can view it from a roadside lookout without hiking. The best time to see the falls is in the morning when sunlight hits the water.
After heavy rain, the falls often appear stronger and may split into two streams. Parking is free but limited, so arrive early to avoid crowds.
Learn more about Wailua Falls and nearby attractions before visiting.
Kayak the Wailua River
The Wailua River is the only navigable river in Hawaii. It flows through a lush valley with mountain views and access to several natural sites.
Kayak tours usually start near the river mouth and travel upstream for about two miles. Along the way, you pass tropical plants, small waterfalls, and quiet inlets.
Guided tours often share cultural history about the area. Rentals are available for those who want to explore on their own, but tides and weather can affect conditions.
For more details, see this Wailua River guide.
Visit Secret Falls and Fern Grotto
You can reach Secret Falls, also called Uluwehi Falls, by kayaking the Wailua River and then hiking a short trail. The trail often gets muddy, so wear sturdy shoes.
The waterfall drops into a shallow pool. Visitors often wade or swim in the water.
Fern Grotto sits along a branch of the Wailua River. Lush ferns cover this lava rock cave.
Many boat tours visit Fern Grotto. A short walkway leads you to the viewing area.
These spots offer natural beauty and easy river access. Look for tour options that include both Secret Falls and Fern Grotto.
