Few areas of the Carpathians offer, in a single weekend loop, a mythical mountain, a spectacular gorge, and a natural dam lake with a story almost two centuries old. Ceahlău and the Bicaz Gorges, linked by Lacu Roșu, form one of the most complete mountain routes in Moldavia, accessible even to those who are not experienced hikers.
This guide shows you how to string the three landmarks into a logical loop, what you can climb on foot, and what you only see from the car. For geographic context, see the Ceahlău-Bicaz zone page.
Durău: the gateway into Ceahlău
Durău is the resort at the foot of Ceahlău and the most convenient starting point toward the summit. It has guesthouses, a small centre, and direct access to the marked trails that climb onto the massif's plateau. For many, the hiking day starts and ends here.
The resort works year-round: in summer as a base for tours, in winter for a quiet mountain atmosphere. Look for accommodation early on busy weekends, especially in the warm season.
Toaca Peak: the roof of Ceahlău
Toaca Peak, at 1,904 m, is one of the best-known summits in Ceahlău, recognised by the long metal staircase that climbs the final stretch to the ridge and by the nearby weather station. The view from the top, on a clear day, opens over the whole plateau and far across Moldavia.
The classic route starts at Durău and climbs onto the plateau, from where you reach Toaca via a final section of steps. It is a serious mountain tour in duration, but without technical passages, often walked as the Durău-Toaca route. Start early and check the weather, because fog and wind settle in fast on the plateau.
What to know before climbing
- The full loop often exceeds 6-7 hours, so set off in the morning.
- There is no natural shelter on the plateau; pack for sudden weather changes.
- Water is available at springs along the route, but it is wise to carry your own reserve.
The Bicaz Gorges: a defile between limestone walls
Descending eastward, the road enters the Bicaz Gorges, one of the most dramatic defiles in Romania. The road squeezes between vertical limestone walls hundreds of metres high, with sections almost carved into the rock and the famous "Hell's Throat" sector, where the gorge becomes extremely narrow.
You need no hike here: the spectacle is visible from the car and from the laid-out car parks, though it is worth stopping and walking a few hundred metres to feel the scale of the walls. It is also one of the most impressive scenic roads in the country.
Lacu Roșu: the natural dam lake from 1837
At the end of the gorges you are met by Lacu Roșu, a natural dam lake formed in 1837, when a landslide blocked the valley and flooded the forest. The remaining tree trunks beneath the water, sometimes visible at the surface, give the lake its distinctive atmosphere and the name "the Killer Lake" in local legend.
Today it is a quiet tourist destination, with boat rides, lakeside paths, and guesthouses around it. It works perfectly as the closing point of the loop, whether for a night or just a lunch break.
The complete loop, step by step
- Leave Durău in the morning and climb onto the Ceahlău plateau toward Toaca.
- After descending, drive eastward through Bicaz.
- Travel the Bicaz Gorges with stops at the viewpoint car parks.
- Finish at Lacu Roșu, where you can stay or eat.
If you want to do it all without rushing, split it into two days: one for Ceahlău, one for the gorges and lake. For similar short-break ideas, see the article weekend in the mountains: ideas, and for other defiles around the country, gorges and canyons to visit.
Frequently asked questions
How long is the climb to Toaca from Durău?
The full loop often exceeds 6-7 hours, depending on pace and the route chosen. It is not technical but it is long, so set off in the morning.
Do you have to walk through the Bicaz Gorges?
Not necessarily; the defile is driven through. Still, a few hundred metres on foot in the narrow zone is worth it to appreciate the height of the walls.
Why is it called Lacu Roșu (the Red Lake)?
The lake formed in 1837 through a landslide that dammed the valley. The name comes from the reddish tint of the sediments and from local legends.
Can the whole loop be done in a single day?
Yes, but it is a very full day. To savour the mountain as well as the gorges and the lake, we recommend two days with a night at Durău or Lacu Roșu.
When is the best time for this loop?
Late spring to autumn for the hike on Ceahlău. The gorges and Lacu Roșu can be visited in winter too, but check road conditions and the weather.
