3 Best Sights in Central Valley, Costa Rica

This is widely regarded as Costa Rica's coolest volcano experience. An observation platform lets you peer right inside what is thought to be the largest active volcanic crater in the world. The ride up here is disarming: pleasant farms and lush green cloud forest line the volcano's slopes; friendly fruit and jam vendors along the road beckon you to stop and sample their wares. Only when you get to the bubbling, gurgling, smoking summit do you leave those pastoral scenes behind and stare into the crater. Arrive here as early as possible in the morning for the best views. Clouds occasionally move in as early as midmorning.

It's wise to step away from the crater and its fumes for fresh air at least once every 10 minutes, and a good place to take that break is the park's bustling visitor center—the country's best—with complete park information, a cafeteria, and a gift shop. The volcano features prominently on many itineraries of area tour operators. Increased volcanic activity in recent years forces periodic closure of the park. Check conditions before heading up here on your own.

Entries are timed and must be reserved and paid for in advance at the national parks website. You'll undergo a mandatory safety presentation on arrival and must wear a helmet during your visit. The park's famed hiking trails are closed at this writing.

For more information, see the color feature at the beginning of this chapter.

Costa Rica's highest volcano, at 11,260 feet, is one of the most popular with visitors, since you can walk right down into the crater. Its presence is a mixed blessing: the ash fertilizes the Central Valley soil, but the volcano has caused considerable destruction through the centuries.  Do not leave anything of value in your car while you visit the volcano. There have been a lot of thefts in the parking lot here, even though it is supposed to be guarded.

Most San José and area tour operators include the volcano among their excursions, and this is the easiest way to visit. With the Poás Volcano National Park near Alajuela limiting visitors these days, numbers have risen dramatically at Irazú, where no such restrictions exist. Weekends here get very busy. Things are a lot more manageable during the week. For more information, see the highlighted listing in this chapter.

Although you've never been able to drive up to its summit as you can at Poás and Irazú, Volcán Turrialba is an impressive sight from a distance. The park reopened in 2022 after being closed for 10 years, a combination of increased volcanic activity and COVID precautions. The volcano became increasingly active in 2010. A series of explosions from 2015 well into 2020 spewed out steam and ash to far reaches of the country and periodically closed Juan Santamaría International Airport. (Volcanic ash can corrode airplane engines.) Sulfur dioxide fumes emanate from the volcano, a phenomenon that has taken its toll on plant and animal life in the immediate vicinity.

While the park is open again, entry comes with major restrictions. Advance reservations and the services of a park guide are required. Tours depart hourly from 6 am to 10 am and take you on a trail 4 km (2½ miles) in length, billed as a "moderate to difficult" hike. Although you can still not go directly to the crater, observation platforms allow for viewing from a safe distance. Park authorities constantly monitor Turrialba's rumblings and close the park at the slightest hint of abnormal activity.

If you suffer from a heart or respiratory condition or are pregnant, stay away.