The Big Island has some of Hawaii’s most diverse hiking experiences. You can explore lush rainforests, black sand beaches, volcanic craters, and high mountain trails.
The best hikes on the Big Island let you see landscapes unique to this island. Each trail gives you a special way to discover the island’s natural beauty.
You can take a short walk to a hidden bay or try a challenging trek up a steep ridge. Some trails are well-known favorites, like the scenic route into Pololū Valley.
The coastal walk to Kīholo Bay passes calm tidepools and wildlife. Remote lava fields and secluded waterfalls reward hikers who explore beyond the main tourist spots.
Guides like this list of top Big Island hiking trails help you find the right route for your skill level. Along with popular paths, the island hides lesser-known trails to quiet lookouts and untouched beaches.
These off-the-beaten-path hikes offer peaceful escapes and a deeper connection to the island’s wild side. Preparing well makes every step safer and more memorable.
Top Hiking Trails on the Big Island
The Big Island has trails through volcanic craters and up to Hawaii’s tallest summits. You can hike past waterfalls and along remote coastlines.
On a single trip, you can explore both rugged lava fields and quiet tropical paths.
Hawaii Volcanoes National Park Highlights
Hawaii Volcanoes National Park features some of the island’s most famous hikes. These trails show off active volcanic terrain, native forests, and unique geology.
The Kilauea Iki Trail lets hikers cross a cooled lava lake from a 1959 eruption. The path drops from the rainforest rim to the crater floor, where steam still rises from vents.
Nearby, the Thurston Lava Tube offers an easy walk through a naturally formed tunnel. Flowing lava carved this tunnel long ago.
This short, well-lit trail is a good choice for families. Longer hikes like the Crater Rim Trail offer wide views of Halemaʻumaʻu Crater.
You should check current park alerts before your visit, as some areas close due to volcanic activity. Find more details in the Hawaii Volcanoes National Park hiking guide.
Mauna Loa and Mauna Kea Summit Adventures
Mauna Loa and Mauna Kea are among the world’s tallest mountains, measured from the ocean floor. Both offer challenging summit hikes with thin air and cooler temperatures.
The Mauna Loa Trail stretches over several days and leads to the Mauna Loa Summit Cabin. Hikers cross rough lava fields and need to bring warm clothes and plenty of water.
You can reach Mauna Kea by a steep trail from the Visitor Information Station. The climb gains over 4,500 feet in less than six miles, making it strenuous.
Many visitors drive to the summit but should watch for altitude sickness. Clear nights on Mauna Kea are great for stargazing, while daytime brings sweeping island views.
Learn more about summit routes from the Big Island hiking list.
Waterfall and Rainforest Trails
The Big Island’s wet side has lush valleys and tall waterfalls. Akaka Falls State Park is a popular spot, with a short loop trail to the 442-foot Akaka Falls and the smaller Kahuna Falls.
Paved trails wind through bamboo groves, orchids, and ferns. Frequent rain means you should wear sturdy shoes.
Other rainforest hikes include routes in Waipiʻo Valley. Here, steep paths lead to black sand beaches and river crossings.
These trails can be muddy and slippery, but they reward you with untouched tropical scenery. Find more information in the best Big Island hikes guide.
Coastal and Beach Hikes
The island’s coast has sandy beaches, lava rock shores, and tidepools. You can reach Green Sand Beach (Papakōlea) by a 2.5-mile hike each way over open, windy land.
The sand’s olive color comes from the mineral olivine. Makalawena Beach is quieter and reached by walking over lava rock from the north or south.
You’ll find soft white sand and turquoise water at Makalawena. Kiholo Bay offers a coastal trail with tidepools, sea turtles, and a mix of black and white sand.
Kealakekua Bay is known for snorkeling and has a rugged trail to the Captain Cook Monument. For more coastal options, see the top Big Island coastal hikes.
Hidden Gems and Off-the-Beaten-Path Hikes
Some of the most rewarding Big Island hikes take you into remote valleys, through lava tubes, and along quiet shorelines. These areas often require extra effort to reach, but they offer unique scenery and a peaceful experience.
Waimanu Valley and Muliwai Trail
The Muliwai Trail starts at the end of Waipio Valley and climbs steep switchbacks before crossing several gulches. Many hikers carry camping gear for an overnight stay in Waimanu Valley since the trek is about 9 miles one way.
The valley has black sand beaches, waterfalls, and streams. You need a permit for campsites and should filter all drinking water.
Steep climbs and uneven terrain make sturdy footwear important. Weather changes quickly, so you should prepare for rain and slippery paths.
This is one of the less-visited Big Island hikes that rewards those who take on a challenge.
Kaumana Caves State Park Exploration
Kaumana Caves State Park sits just outside Hilo and gives access to a huge lava tube from the 1881 Mauna Loa eruption. A steep staircase leads down to the cave entrance, where you can explore sections of the tube with a flashlight.
Inside, the air is cool and damp, and the ground is uneven. The lava tube is dark, so you need a headlamp or bright flashlight.
Many people explore only short sections, but with proper gear, you can go farther into the cave. The park has no entrance fee, and parking is nearby.
This spot lets you see the island’s volcanic past in an accessible and uncrowded way.
Lesser-Known Coastal Walks
Some stretches of the Big Island’s coast stay quiet, even during busy seasons. Trails near South Point pass through open grasslands and lead to rugged cliffs above crashing waves.
You can walk to hidden coves along the Kohala Coast or explore tide pools near Kapoho. These routes often have little shade, so bring sun protection and water.
These areas may not have facilities, so pack out all trash and watch for changing tides. For non-touristy things to do, these coastal walks offer a simple way to enjoy the island.
Essential Tips for Hiking the Big Island
Hikers on the Big Island often face strong sun, sudden rain, and rough terrain. Preparing well and choosing the right gear makes each hike safer and more enjoyable.
Hiking Safety and Preparation
Weather can change quickly, especially in higher elevations or near volcanoes. Check trail conditions and forecasts before you go.
Some trails may close due to volcanic activity or heavy rain. Always carry enough water, since many areas lack safe drinking sources.
Bring at least 2 liters per person for shorter hikes and more for longer treks. Wear sun protection, including sunscreen, a hat, and sunglasses.
On open trails, heat can cause dehydration fast. Use navigation tools like a map, GPS, or an offline trail app to avoid getting lost.
Cell service can be unreliable in remote areas. Tell someone your planned route and expected return time before you leave.
This simple step can save lives in an emergency.
Leave No Trace Principles
The Big Island’s ecosystems are fragile. Follow Leave No Trace practices to keep trails and natural areas healthy.
Pack out all trash, including food scraps. Even biodegradable items can harm wildlife or bring in pests.
Stay on marked trails to protect native plants and prevent erosion. Walking off-trail can damage sensitive habitats, especially in volcanic or coastal zones.
Avoid picking flowers, collecting rocks, or disturbing wildlife. Feeding animals can change their behavior and harm their health.
If you hike with a group, keep noise low to preserve the natural soundscape and avoid disturbing others.
Bury human waste at least 6 inches deep and 200 feet from water sources, or pack it out if required.
Recommended Gear and Hiking Boots
The right gear keeps hiking safer and more comfortable. Sturdy hiking boots with good traction help you handle the island’s varied terrain, from sharp lava rock to muddy rainforest paths.
Wear lightweight, breathable clothing in warm areas. In higher elevations, bring a light jacket for cooler temperatures.
Carry a small daypack for water, snacks, a first-aid kit, and rain gear. Use trekking poles to improve your balance on steep or uneven trails.
Apply insect repellent in wetter regions where mosquitoes are active. Bring a headlamp or flashlight for early morning or late-day hikes.
Check local recommendations for Big Island hiking safety and conditions before you start your hike.
