World's Most Active Island Volcanoes You Can Hike

Islands around the world boast some of the most stunning and awe-inspiring volcanic landscapes. The fiery origins of these islands, formed by volcanic activity over millennia, have left behind powerful reminders of the Earth’s raw energy. Many of these volcanoes remain active, offering adventurous travelers the chance to witness geological wonders up close. From bubbling lava flows to craters spewing steam, hiking these volcanic giants is a thrilling way to experience nature at its most extreme.

But why are there so many volcanoes on islands? The answer lies beneath the ocean surface. Many islands are born from tectonic activity, where the Earth’s crust shifts and allows molten magma to rise to the surface. This process creates volcanic islands, and in some places, ongoing tectonic shifts keep these volcanoes alive and active. Whether you’re a seasoned adventurer or a curious traveler, hiking active volcanoes offers an unforgettable connection to the raw power of our planet. Here are 10 islands where you can see and hike active volcanoes.

1. Mount Etna, Sicily, Italy

Mount Etna, Europe’s highest active volcano, has been erupting frequently for centuries, with its most recent eruption occurring in 2021. Standing at 3,357 meters, Etna offers a variety of trails, but the summit route is the most iconic. The lower slopes can be explored independently, but hiking to the summit craters requires a guide due to the risk of sudden eruptions.

Hiking Trail: Start from Rifugio Sapienza, take a cable car to 2,500 meters, and hike to the summit craters. The guided trek takes 5-6 hours round trip.

Difficulty: Moderate to Hard – Steep terrain and high altitude make this challenging for some hikers.

Preparation: Layers, sturdy boots, and sunscreen are essential. A guide is required for summit hikes.

Local Tip: Sample Etna’s volcanic wine after your hike, grown in the region’s fertile soils.

2. Kīlauea, Big Island, Hawaii

Kīlauea is one of the most active volcanoes in the world, erupting continuously from 1983 to 2018, with recent activity in 2021. It offers an unparalleled opportunity to hike through a volcanic landscape, complete with steaming vents and hardened lava flows. You can explore most of Kīlauea on your own, but guided tours are available for those wanting a more in-depth experience.

Hiking Trail: The Kīlauea Iki Trail is a 6.4 km loop (4 miles), taking 2-3 hours to complete. The hike takes you across a solidified lava lake and offers views of volcanic steam vents.

Difficulty: Easy to Moderate – A relatively short hike, but the terrain can be uneven.

Preparation: Bring a hat, sunscreen, and rain jacket. The weather can be unpredictable.

Local Tip: Visit at night to see the glow of the lava lake from the nearby Jaggar Museum.

3. Mount Batur, Bali, Indonesia

Mount Batur is one of Bali’s most beloved active volcanoes, and its last eruption was in 2000. Known for its incredible sunrise treks, Mount Batur is a popular destination for tourists seeking breathtaking views of the caldera lake and surrounding villages. A guide is recommended for safety and to navigate the dark, early-morning trail.

Hiking Trail: The trek begins from Toya Bungkah and takes about 2-3 hours to reach the summit. Hikers usually start at 3 am to witness the sunrise.

Difficulty: Moderate – The hike is relatively short but involves a steep climb.

Preparation: Light hiking shoes and a headlamp are essential for the pre-dawn hike. A guide is recommended.

Local Tip: After the hike, relax in nearby hot springs by Lake Batur to soothe your muscles.

4. Stromboli, Aeolian Islands, Italy

Stromboli, one of the most active volcanoes in the world, is famous for its frequent eruptions every 15-20 minutes. The volcano’s most recent major eruption occurred in 2019, and it remains in an almost constant state of activity. Due to the risks associated with frequent eruptions, hiking to the summit requires a guide, who will ensure your safety while you witness the fiery spectacle.

Hiking Trail: The hike to the summit takes 5-6 hours round trip, with a mandatory guide leading you to the best vantage points at sunset.

Difficulty: Moderate – Steep and uneven terrain, but manageable with a guide.

Preparation: Wear sturdy boots and bring a headlamp. A guide is mandatory.

Local Tip: Bring a packed dinner to enjoy as you watch the explosive eruptions light up the night sky.

5. Mount Yasur, Tanna Island, Vanuatu

Mount Yasur is known as one of the most accessible active volcanoes in the world. Its last major eruption occurred in 2021, and it continues to erupt regularly. The short but steep hike to the crater offers an incredible view of the molten lava below. While the trail can be completed without a guide, it’s recommended for safety, especially during periods of heightened activity.

Hiking Trail: A 45-minute hike from the base takes you directly to the crater rim, where you can safely observe the active volcano.

Difficulty: Easy – A short, steep hike that’s suitable for most fitness levels.

Preparation: Sturdy shoes, a jacket, and water are essential. A guide is recommended for safety.

Local Tip: Visit at dusk for the most dramatic views of the glowing lava.

6. Suwanosejima, Ryukyu Islands, Japan

Suwanosejima is one of the most active and remote volcanoes in Japan, located in the Ryukyu Islands. The volcano erupts frequently, with recent activity recorded in 2021. This island is a hidden gem for adventurous hikers who want to explore a less-traveled volcanic landscape. Given the active nature of the volcano and rugged terrain, a guide is mandatory to ensure your safety during the hike.

Hiking Trail: The hike to the summit takes about 4-5 hours round trip, with rugged, undeveloped paths leading to the crater.

Difficulty: Hard – Remote, steep terrain, and frequent volcanic activity make this a challenging hike.

Preparation: Pack sturdy shoes, water, and a jacket. A guide is mandatory for safety.

Local Tip: Experience the island’s rural charm by staying in a traditional guesthouse.

7. Mount Rinjani, Lombok, Indonesia

Mount Rinjani is Indonesia’s second-highest volcano, towering at 3,726 meters. Its last significant eruption was in 2016, but it remains active. The multi-day trek to the summit is challenging, with steep climbs and rough terrain. Due to the difficulty of the hike, a guide and porter are essential for safety and navigation. The rewards include stunning views of the caldera lake and dramatic volcanic scenery.

Hiking Trail: The trek typically takes 2-3 days, covering about 24 kilometers, with overnight camping at the crater rim.

Difficulty: Very Hard – A demanding multi-day hike with steep ascents and rough terrain.

Preparation: Hiking boots, warm clothing, and plenty of water are necessary. A guide and porter are required.

Local Tip: The sunrise from the crater rim is a breathtaking reward for your efforts.

8. Ambrym Island, Vanuatu

Ambrym Island is home to the active volcanoes of Mount Marum and Mount Benbow, which last erupted in 2018. Known for its lava lakes and challenging terrain, Ambrym offers one of the most thrilling volcano hikes in the Pacific. The trek is demanding, and a local guide is required due to the island’s dense jungle and rugged volcanic terrain.

Hiking Trail: The trek to Mount Marum’s crater takes about 8-9 hours round trip. The trail is steep, muddy, and crosses ancient lava fields.

Difficulty: Hard – The challenging terrain and unpredictable weather make this a demanding hike.

Preparation: Wear sturdy hiking boots and bring plenty of water. A guide is mandatory to navigate the jungle and volcanic paths.

Local Tip: Stay in a local village to learn about the island’s deep cultural connection to the volcanoes.

9. Fogo Island, Cape Verde

Fogo Island’s Pico do Fogo volcano last erupted in 2014-2015, leaving behind a dramatic landscape of volcanic ash and craters. The hike to the summit is steep and challenging, but the panoramic views of the island and surrounding Atlantic Ocean are worth the effort. It’s possible to hike alone, but hiring a guide is recommended to ensure safety and to learn about the island’s volcanic history.

Hiking Trail: The trail to the summit takes about 5-6 hours round trip, passing through steep, loose volcanic ash fields.

Difficulty: Hard – The steep, sandy terrain makes this a strenuous hike.

Preparation: Sturdy boots and trekking poles are essential. A guide is recommended for navigation and safety.

Local Tip: Visit the nearby village of Cha das Caldeiras to taste local wines produced in volcanic soil.

10. Piton de la Fournaise, Réunion Island

Piton de la Fournaise is one of the world’s most active volcanoes, erupting frequently, with the most recent eruption occurring in 2023. The hike to the summit offers incredible views of the caldera and its still-smoking craters. Although you can hike independently, a guide is recommended for first-timers to ensure a safe and informative experience.

Hiking Trail: The trail to the summit takes about 4-5 hours round trip, starting from Pas de Bellecombe.

Difficulty: Moderate – The trail is well-marked but can be steep and rocky in sections.

Preparation: Bring plenty of water, sun protection, and sturdy hiking boots. Guided tours are available and recommended for first-time visitors.

Local Tip: The crater rim offers some of the best photo opportunities on the island, so don’t forget your camera.

Each of these volcanic hikes provides not only breathtaking views but also a glimpse into the dynamic forces that have shaped these islands over time. With each step, hikers are immersed in an extraordinary blend of natural beauty and geological wonder.