Arenal Volcano History, Hiking, and Natural Wonders in Costa Rica

Arenal Volcano is one of Costa Rica’s most famous natural landmarks. Located near the town of La Fortuna, this majestic volcano stands 1,670 meters tall and is known for its near-perfect cone shape.

Although Arenal has been quiet since 2010, it is still considered an active volcano. Its scenic surroundings make it a top destination for hiking, wildlife spotting, and enjoying natural hot springs.

Ancient Formation

Arenal was formed thousands of years ago as part of the Tilarán Mountain Range. It’s a stratovolcano, built up by layers of lava, ash, and rock.

The 1968 Eruption

After centuries of dormancy, Arenal suddenly erupted in 1968, destroying nearby villages and transforming the landscape. The eruption continued for decades, making Arenal one of the most active volcanoes in Central America until it calmed down in 2010.

While the volcano itself is in a resting phase, the surrounding areas including Arenal Volcano National Park offer incredible natural beauty. The park protects over 29,000 acres of rainforest, lava fields, and diverse wildlife.

There are many well-maintained hiking trails in and around Arenal, offering views of the volcano, old lava flows, and lush jungle. Popular trails include:

• Lava Trail (1968 route)

• Rainforest walks for birdwatching and sloth spotting

• Scenic viewpoints for panoramic photos of Arenal

These trails range from easy walks to moderate hikes, perfect for nature lovers and photographers.

Arenal’s rainforest is home to hundreds of species, including:

• Sloths (both two- and three-toed)

• Toucans and tropical birds

• Monkeys, frogs, and reptiles

• Colorful orchids and giant ferns

With the right guide, sloth encounters are common in the nearby reserves and private trails.

Thanks to the volcano’s geothermal energy, the region is rich in natural hot springs. Visitors can relax in thermal pools surrounded by nature.

Other adventure options include:

• Zip-lining

• White-water rafting

• Horseback riding

• Canyoning and waterfall tours

The town of La Fortuna is the main base for exploring Arenal Volcano. It offers everything from boutique hotels and local restaurants to guided tours and transportation.

The local community is friendly and deeply involved in sustainable tourism.

• Dry season (Dec–Apr): Best for hiking, clear views, and outdoor activities.

• Green season (May–Nov): Fewer crowds and greener landscapes.

Wildlife is active year-round, and sloths can be seen in both seasons.

Arenal is a symbol of Costa Rica’s commitment to conservation. Eco-friendly lodges, reforestation programs, and wildlife protection efforts are all part of the region’s approach to sustainable tourism.

La Fortuna’s rich biodiversity is a treasure worth protecting. Eco-tourism allows travelers to witness its wonders while promoting conservation efforts. By choosing eco-friendly tours like Sloth Tour La Fortuna, visitors contribute to preserving local flora and fauna, support local communities, and minimize the environmental impact of tourism.

Sloth Tour La Fortuna is ideal for families. It’s safe, educational, and fun for people of all ages, making it a perfect family-friendly outing that balances adventure with eco-consciousness.

By collaborating with local families and small businesses, our tours in La Fortuna contribute to the region’s economy while preserving its natural heritage. This sustainable approach ensures that both travelers and residents benefit from responsible tourism practices.