Celeste River (Río Celeste)

The Basics

Reached by hiking through the surrounding rain forest, Rio Celeste rewards visitors with its natural beauty and a number of other sights along the river. Most notable are the Rio Celeste Waterfall, a favorite photo spot where the river tumbles into a striking blue lagoon; the Teñideros, where two rivers merge in the Celeste; and the Poza Azul, the most stunning “dye pool.”

Many travelers opt to visit the national park on a 1- or 2-day tour from Tamarindo or La Fortuna. Excursions usually include a hike to the waterfall. Although swimming is prohibited within the park, it is possible to bathe in the river’s hot springs or enjoy white-water tubing along the river.

Things to Know Before You Go

• There is an admission fee to enter the Tenorio Volcano National Park and visitor numbers are limited, so it’s best to arrive early.

• The trail to the waterfall is 3.7 miles (6 kilometers) round-trip, and hiking to the waterfall takes about an hour.

• A raincoat and sturdy shoes with a good grip are essential, as rain is common even in the dry season. The trails are unpaved and can get extremely muddy.

• Restrooms, a restaurant, and a car park are located at the entrance to the national park.

How to Get There

The Río Celeste is located in Tenorio Volcano National Park in northwestern Costa Rica, about 100 miles (160 kilometers) from San José. There is no public transport directly to the park, but it’s possible to take a taxi from the nearby town of Bijagua.

When to Get There

The river’s startling color change is best viewed during the dry season (December to April). Excess rainfall can dilute the reactive chemicals, leaving the waters with a less appealing muddy hue. The busiest period is from February to April, when it’s best to make an early start. Hikers allowed on the trail are limited, so you might find yourself having to wait if it gets too crowded.

Tenorio Volcano National Park

Hiking is the main activity in Tenorio Volcano National Park and there are a number of well-signposted short trails to follow. The Waterfall Trail is the main attraction, but worthwhile detours include the Mirador, a 5-minute trail that affords gorgeous views across the rain forest; and the Tenorio Volcano trail, although it’s not possible to climb to the summit. The park also harbors a wealth of wildlife, including tapirs, howler monkeys, ocelots, and jaguars.

What is the best time of year to visit the Celeste River (Río Celeste)?

The best time to visit the Celeste River (Río Celeste) is during Costa Rica’s dry season—December to April—when you'll have the clearest skies and the best chance of seeing the river's vibrant blue color. In the rainy season from May to November, the trails can be muddy and the river can appear less blue.

What causes the unique blue color of the Celeste River?

The unique blue color of Celeste River is caused by a rare phenomenon: The confluence of two clear rivers—the Rio Buenavista (which is alkaline) and Quebrada Agria (a creek bearing the mineral aluminum silicate, making it acidic)—mixes and, under certain light conditions, scatters light wavelengths, creating the magical turquoise hue.

Can you swim in the Celeste River?

No, swimming in the Celeste River isn’t allowed—it’s prohibited to protect the delicate ecosystem and preserve the water's unique color. However, you can swim in the river’s turquoise waters outside the park at the Rio Celeste Free Pool.

Do you need a guide to hike to Celeste River?

A guide is not mandatory for hiking to and along the Celeste River. The trails are well maintained, linear, marked, and partially concrete, so it’s unlikely you’ll get lost or have issues. However, a guide can offer valuable insights into the local flora and fauna, as well as the area's history and geology.

Is it hard to hike to Celeste Waterfall?

Most consider the hike to Celeste Waterfall to be moderately challenging, though it depends on your level of fitness. The trail is 3.7 miles (6 kilometers) and involves some steep and uneven sections, including over 200 stairs. The path can be muddy, especially during the rainy season, so suitable footwear is a must.

How do I get to Celeste River from San Jose?

It’s about a 4-hour drive if traveling to Celeste River from San Jose by car. Alternatively, buses run from San Jose to Bijagua, a town near the park entrance, and then you can take a taxi into the park. Of course, an organized tour takes out all the navigation hassles, as most tours include round-trip transportation.