Reykjadalur

The Famous Hot River Hike

3.2km Hike Distance
38-40°C River Temperature
45 min From Reykjavík

About Reykjadalur

Reykjadalur, meaning "Steam Valley," offers one of Iceland's most unique experiences - hiking through a geothermal wonderland to bathe in a naturally heated river surrounded by steaming hot springs and fumaroles.

🌋 Geothermal Valley

  • Name means "Steam Valley" or "Smoke Valley"
  • Active geothermal area with dozens of hot springs
  • Steaming fumaroles throughout the valley
  • Part of the Hengill volcanic system

🏞️ The Experience

  • Moderate hike through stunning landscapes
  • Bathe in naturally heated river
  • Steam rising from the ground everywhere
  • Free natural hot spring experience

📍 Location

  • Near Hveragerði town, South Iceland
  • 45 minutes drive from Reykjavík
  • Part of Hengill geothermal area
  • Year-round accessibility

The Hike to Paradise

The journey is as spectacular as the destination - a moderate 3.2km hike through ever-changing geothermal landscapes.

Start - Dalakot Parking

Begin at the marked parking area in Hveragerði. Well-maintained trail starts immediately with views over the town.

1km - Geothermal Activity Begins

First hot springs and fumaroles appear. Steam rises from the ground creating an otherworldly atmosphere.

2km - Steaming Valley Views

Panoramic views open up over the entire valley. Dozens of steaming vents visible across the landscape.

3.2km - The Hot River

Arrive at the famous bathing spots along the naturally heated river. Multiple pools of varying temperatures.

🥾 Trail Details

  • Distance: 3.2km one way (6.4km round trip)
  • Elevation gain: 200m
  • Difficulty: Moderate
  • Time: 1-1.5 hours each way

🌤️ Trail Conditions

  • Well-marked wooden boardwalks in sensitive areas
  • Rocky and muddy sections
  • Can be slippery when wet
  • Open year-round but winter requires care

The Famous Hot River

🌡️ Temperature Zones

The river has natural temperature gradients created by hot spring inflows.

  • Warmest spots: 38-40°C (100-104°F)
  • Comfortable bathing: 35-38°C (95-100°F)
  • Cooler areas: 30-35°C (86-95°F)
  • Temperature varies by season and weather

🏊 Bathing Experience

Multiple natural pools and sections perfect for soaking and swimming.

  • Natural rock and gravel bottom
  • Varying depths from shallow to swimming
  • Crystal clear geothermal water
  • Incredible mountain views while bathing

⚠️ Safety & Etiquette

Test Temperature: Always check water temperature before entering - some spots can be scalding hot
Changing Areas: Use designated changing areas and respect others' privacy
Leave No Trace: Pack out all trash and respect the natural environment
Weather Awareness: Conditions can change rapidly - be prepared for rain or snow

Planning Your Visit

🎒 What to Bring

  • Essential: Swimwear, towel, water
  • Clothing: Waterproof jacket, good hiking boots
  • Optional: Waterproof bag, snacks, camera
  • Winter: Warm clothes, ice grips for boots

🕒 Best Times

  • Early Morning: Fewer crowds, peaceful experience
  • Sunset: Magical light, but can be busy
  • Winter: Snow-covered landscapes, Northern Lights
  • Spring: Wildflowers, perfect temperatures

🚗 Getting There

  • Drive to Hveragerði (45 min from Reykjavík)
  • Park at Dalakot parking area (small fee)
  • Bus connections to Hveragerði available
  • Walk through town to trailhead

🏘️ Nearby Services

  • Hveragerði: Restaurants, shops, accommodation
  • Greenhouse tours: Geothermal agriculture
  • Earthquake Exhibition: Geological education
  • Other hot springs: Gufudalur nearby

🌍 Seasonal Considerations

Summer (June-August)

Warmest weather, midnight sun, lupine flowers in bloom. Most crowded period.

Winter (December-February)

Snow-covered landscape, Northern Lights possible, fewer visitors. Requires winter gear.

Spring/Fall

Ideal conditions with moderate crowds, good weather, and comfortable temperatures.

Location