Which Costa Rican national park is famous for the active Arenal Volcano?

Arenal Volcano National Park is the Costa Rican national park famous for the active Arenal Volcano.

Located in central Costa Rica near the town of La Fortuna, the park protects Arenal Volcano and the surrounding rainforest, lava fields, and wildlife habitat. Arenal was long considered dormant until a major eruption on July 29, 1968, destroyed nearby settlements and began one of Costa Rica’s most closely watched volcanic periods.

The volcano was frequently active for decades, producing lava flows, ash, and glowing eruptions visible from surrounding viewpoints. Its activity greatly helped establish La Fortuna as a major destination for hiking, hot springs, canopy tours, and wildlife watching. Arenal is now considered dormant or resting, but it remains a prominent volcanic landmark.

A common mix-up is Poás Volcano National Park, which protects another famous Costa Rican volcano and its crater lake. Arenal Volcano National Park also contains the older, inactive Chato Volcano and borders Lake Arenal, an important source of hydroelectric power.