In short
- Water temperatures average 4°C to 8.5°C year-round.
- Swimming is strictly prohibited at the core springs.
- Natural pools near Klidonia Stone Bridge are best for a quick dip.
In this article
Taking a dip in the Voidomatis River is popular, but it requires a high tolerance for cold. Since the water flows from mountain springs, it never warms up, even in August. You must also follow park regulations to protect the delicate ecosystem.
How cold is the water in the Voidomatis River?
The water temperature remains extremely cold, averaging between 4°C and 8.5°C throughout the year.
The river is considered one of the coldest in Europe. Summer heat does not affect the water temperature. Deep mountain springs feed the river. The steep Vikos Gorge and ancient plane trees also provide constant shade.
| Location | Swimming Status | Feature |
|---|---|---|
| Voidomatis Springs | Prohibited | Core ecosystem origin |
| Klidonia Bridge | Allowed | Natural pools |
| Aristi to Klidonia | Allowed | Class I-II rapids |
Where are the best spots to swim in the Voidomatis River?
The best place for a quick swim is near the Klidonia Stone Bridge at the end of the lower river.
This area features natural pools where the water slows down. It marks the finish line for most rafting tours. Many visitors take a quick plunge here after completing the 5-kilometer Ice Age Trail from Aristi.
Can you swim at the Voidomatis Springs?
No, swimming is strictly prohibited in the core springs area.
The springs emerge from beneath the village of Vikos. The Vikos-Aoös National Park enforces this ban to protect the fragile local ecosystem. You can photograph the clear waters here, but you must stay on the banks.
Do rafting tours allow swimming?
Yes, many rafting operators let you swim in safe sections of the river during the tour.
If you book a commercial rafting trip, guides provide thick neoprene wetsuits and boots. This gear makes the 4°C to 8.5°C water much more tolerable. You just need to wear your swimwear underneath the provided suit.
What should I pack if I plan to swim?
Bring items that help you warm up quickly after exiting the freezing water.
- A microfiber towel for fast drying.
- Warm fleece or light jacket, as temperatures drop in the gorge shade.
- Neoprene water shoes or secure grip sandals for rocky riverbeds.
- Dry bag to protect your phone and valuables.
Is the water clean enough to drink?
The river is renowned as one of Europe's cleanest rivers.
You can fill your reusable water bottle directly with the local spring water. The pristine condition of the water is a major reason why the park restricts swimming at the direct source.
Questions travellers ask
Do I need to pay to swim in the river?
No, there is no entrance fee to access the river or the encompassing Vikos-Aoös National Park.
When is the best time of year to visit?
The river is accessible year-round. May to October are the best months for activities, with May and June offering the best water levels.
How deep is the Vikos Gorge around the river?
The gorge reaches depths of up to 1,000 meters. It is recognized for its extreme proportions.
