Walk, wade and swim through the Orlias on the eastern slopes of Mount Olympus. This 4–5 hour guided river trek mixes short hikes with waterfall swims and natural pools—ideal for families who want active refreshment beneath ancient peaks.
More ways to explore the area's outdoor wonders
You step off a narrow trail into the cool, constant murmur of Orlias — a stream that seems to tug at your boots and dare you downstream. Sun filters through beech and plane trees; waterfalls flank the path and cliffs of red rock rise like a sudden shore. The river keeps moving, pushing the group into shallow pools and natural slides where the water will challenge and refresh you.
Difficulty
moderate
Duration
4–5 hours
Fitness Level
Suitable for people in light-to-moderate fitness who can walk uneven, wet terrain and swim short distances
Wildlife
History
Mount Olympus has been a cultural landmark since ancient Greece and was designated the country’s first national park in 1938 to protect its exceptional biodiversity.
Conservation
Stay on established trails and avoid leaving sunscreen or litter in pools; the national park protects sensitive plant communities and freshwater habitats.
Reserve your spot on the Mount Olympus River Trekking Activity in Orlias River today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear grippy water shoes
Streambeds are rocky and slippery; closed-toe water shoes or sturdy sandals improve traction and protect toes from sharp stones.
Pack a dry bag and quick-change
Bring a dry layer and a towel in a waterproof bag—you’ll get wet during swims and changing near the trail is easiest when gear stays dry.
Mind the current and step carefully
Even shallow sections can hide slick algae or sudden drop-offs—use trekking poles or your guide’s route advice if unsure.
Time it for midday light
Late morning to early afternoon provides warmer water and better visibility for jumps and photos; earlier starts mean cooler temperatures and fewer people.
Closed-toe water shoes
Protects feet on sharp, slippery streambeds and provides traction for river walking.
summer
Lightweight dry bag
Keeps clothes, phone and snacks dry while you swim and move through pools.
Quick-dry clothing & towel
Speeds drying after swims and reduces chill on shaded river sections.
summer
Light waterproof jacket or fleece
Provides warmth on cool mornings or if weather changes in mountain environments.
spring