Walk through humid cloud forest to a waterfall where two rivers meet and an almost impossibly blue stream appears. This guided day hike in Tenorio Volcano National Park blends geology, wildlife viewing, and a chance to swim in striking turquoise water.
More ways to explore the area's outdoor wonders
You step off the vehicle into humid air that smells faintly of sulfur and wet earth; the jungle closes in and the river ahead seems to glow. The trail to Rio Celeste follows shaded switchbacks and boardwalks, leading past two clear tributaries that, where they meet, produce the river’s surreal light-blue tone.
Difficulty
moderate
Duration
4–6 hours (activity portion)
Fitness Level
Suitable for people in average fitness who can handle uneven terrain, short climbs, and several miles of walking.
Wildlife
History
Tenorio Volcano and its waterways formed from relatively recent volcanic activity; the park preserves both volcanic geology and lands long inhabited by indigenous communities.
Conservation
The park is protected to preserve its rare hydrology and cloud-forest species—stay on trails, respect signage, and avoid contaminating waterways to support conservation.
Reserve your spot on the Rio Celeste Hike at Tenorio Volcano National Park today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early to beat crowds
Morning light enhances the blue and birds are most active; aim to arrive with your guided group before mid-morning.
Footwear matters
Trails are muddy and uneven—sturdy, grippy hiking shoes reduce slip risk and protect ankles on roots and rocks.
Protect the river
Do not use soaps or sunscreens before swimming; even biodegradable products can alter the delicate chemistry that creates the blue.
Hydrate and snack
Carry at least 1–2 liters of water and high-energy snacks—guides provide bottled water but you’ll want quick fuel for viewpoints and the return climb.
Sturdy hiking shoes
Provides grip on muddy trails and protection over roots and rocks.
Light rain jacket
Quick showers are common—packable rain shell keeps you dry and warm.
summer
Reusable water bottle (1–2 L)
Hydration is essential during the climb; guides typically refill bottles if needed.
Swimwear and quick-dry towel
Bring if you plan to swim at the designated river sections after the hike.