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Rio Celeste

Park

Rio Celeste in Tenorio National Park draws hikers to its sky‑blue river and waterfall, coloured by volcanic minerals. Visitors follow rainforest boardwalks, photograph the catarata and use nearby hot springs.

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In this guide

Rio Celeste essentials

Address: Tenorio Volcano National Park, Alajuela Province, Costa Rica
Website: sinac.go.cr
Hours: Park hours vary seasonally; commonly 7:00am-4:00pm (check Tenorio Volcano National Park website before visiting).
Admission: Entrance to Tenorio Volcano National Park: CRC 1,000-2,000 (~$2-4) for foreigners; local rates may be lower. Guided hikes extra.
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About Rio Celeste

Rio Celeste is a river inside Tenorio Volcano National Park in Alajuela Province, Costa Rica, notable for an intense sky-blue color along much of its course.

The main attractions are the bright-blue channel at the confluence called the Teñidero and a scenic waterfall commonly referred to as the Rio Celeste Waterfall. Hikers follow rainforest trails that pass the Teñidero viewpoint and continue to the waterfall, with multiple forested viewpoints along the way.

The blue color appears at the point where two streams meet and a chemical reaction produces suspended particles that scatter blue light; the change is most obvious at the Teñidero and downstream. The river and its immediate surroundings are protected within Tenorio Volcano National Park.

The river lies in the northern highlands of Alajuela Province, within Tenorio Volcano National Park and close to the village of Bijagua. The park is in northwest Costa Rica in a mountainous, rainforest landscape.

  • Park access: Main access is through the Tenorio Volcano National Park ranger station near the village of Bijagua; trails are marked but can be muddy and slippery after rain.
  • Best viewpoints: Two short viewpoints, the Teñidero and the waterfall lookout, are the best places to see the river’s color change and photograph the cascade.

What to See#

  • Teñidero: The confluence known locally as the Teñidero is the spot where two colorless tributaries meet and the river takes on its distinctive blue hue; it is a short, well-marked viewpoint on the main park trail.
  • Rio Celeste Waterfall: A cascade usually called the Rio Celeste Waterfall drops from a narrow gorge; the fall is commonly reported as about 30 metres high and is a primary photo point on the trail.
Things to Do
When to Go

Best Time to Visit Rio Celeste

Visit in the dry season for easier hiking and clearer river colors; early morning avoids crowds.

Dry season
Dec-Apr · 20-30°C
Trails are firmer and the color of the river is often more vivid after clear nights; mornings are cool and insect activity is lower.
Green (wet) season
May-Nov · 18-26°C
Higher rainfall can swell streams and create dramatic flows; expect muddier trails and afternoon showers, but fewer tourists.

Weather & Climate near Rio Celeste

Climate

Rio Celeste's climate is classified as Oceanic - Oceanic climate with consistently warm temperatures year-round. Temperatures range from 13°C to 24°C. Heavy rainfall (3078 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 59 Moderate
Best Time to Visit
MarchAprilFebruary
Temperature & Rainfall
Temperature Range
39°
Warmest Month
16°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 13° - 22° 18° 177 mm mostly sunny 80% 4.7 m/s 2.0 very high 11.5h
February Excellent 13° - 22° 18° 106 mm clear 73% 4.6 m/s 2.4 extreme 11.7h
March Ideal 14° - 24° 19° 35 mm mostly sunny 66% 4.3 m/s 2.6 extreme 12.0h
April Excellent 15° - 24° 20° 50 mm some cloud 66% 3.8 m/s 2.5 extreme 12.3h
May Good 15° - 24° 19° 241 mm overcast 76% 2.7 m/s 2.1 extreme 12.5h
June Good 15° - 23° 19° 357 mm overcast 86% 2.5 m/s 2.0 extreme 12.6h
July Good 15° - 23° 19° 379 mm overcast 86% 3.1 m/s 2.0 extreme 12.6h
August Good 15° - 23° 19° 350 mm overcast 86% 2.8 m/s 2.1 extreme 12.3h
September Good 14° - 23° 18° 423 mm overcast 88% 2.2 m/s 2.0 extreme 12.1h
October Good 14° - 22° 18° 377 mm overcast 90% 2.3 m/s 1.8 very high 11.8h
November Good 14° - 21° 18° 338 mm partly cloudy 89% 3.0 m/s 1.8 very high 11.5h
December Good 13° - 22° 17° 245 mm some cloud 85% 4.1 m/s 1.8 very high 11.4h
Getting There & Around

How to Get to Rio Celeste

From the town of Bijagua (roughly 25-35 minutes by road), drive or take a shuttle to the Tenorio Volcano National Park entrance. The park is about 100-120 km northwest of Liberia (approx. 2-3 hours by car). Road access uses Route 6 and local dirt roads; 4x4 is recommended in the wet season. Organized tours from La Fortuna and Liberia include transport and a guide.

Tips for Visiting Rio Celeste

  • Arrive at the park gate when it opens - the famous Teñidero (the waterfall where the two rivers meet) fills with buses by late morning.
  • Bring waterproof shoes: the trail to the waterfall crosses muddy, root-laced paths and often has slick volcanic clay.
  • Hire a park-approved guide at the trailhead - they point out the exact confluence point and explain the mineral chemistry behind the color (most visitors call it "magic" without understanding why).