Celeste River (Río Celeste) Tours and Tickets

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.

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.

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.

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.

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.

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.