Mountain lakes in the Jura - Les Rousses resort
  • Health information: swimming at Lake Lamoura – learn more

mountain lakes

Discover two high-altitude lakes in the heart of the Jura

Over 1 meters above sea level, the lakes of Les Rousses and Lamoura They offer an exceptional natural setting for getting away and enjoying activities for all nature lovers. Surrounded by forests and preserved peat bogs, these two mountain lakes charm with their cool waters, peaceful landscapes and the many activities on offer: swimming, paddleboarding, canoeing, hiking, fishing or simply relaxing by the water.

Rousses lake

Lake Lamoura

Lake Rousses

The largest lake in Les Rousses resort is the perfect place for outdoor activities. Thanks to its large size, this lake offers a variety of activities for the whole family. Enjoy the water sports and embark on a discovery of the lake aboard a pedal boat, canoe, kayak or on a paddleboard.

Rental is available starting from half an hour of practice. Enjoy special moments with family or friends.

Swimming area

The supervised swimming area will be open for the summer season from Wednesday, July 1st until August 30th (every day from 13 p.m. to 19 p.m.), with a view of the Noirmont massif and, in the distance, of the Dôle massif.

Activities at the lake

Nautic base

Operation:

  • From June 13 to 28, 2026, Wednesdays and weekends from 14 p.m. to 18 p.m.
  • From June 29 to July 17, 2026, every day from 13 p.m. to 19 p.m.
  • From July 18 to August 23, 2026, every day from 11am to 19pm.
  • From August 24 to 30, 2026, every day from 13 p.m. to 19 p.m.
  • No reservation possible.
Rental of:30 min1 time2 hoursMinimum age
Pedal boat for 2/3 people8,30 €12,80 € Suitable for all audiences
Pedal boat for 4/5 people14,70 €21,80 € Suitable for all audiences
Canoe12 €18,70 €30 €Ages 6 and up
Kayak8,50 €13,60 €21,50 €Ages 6 and up
stand up paddle12 €18,70 €30 €Ages 6 and up
Stand-up paddleboard for 4 people36,50 €54,50 € Ages 6 and up

Want to be accompanied for paddleboarding or packrafting? (activity which combines hiking and kayaking), share a half-day with an instructor : treasure hunt, fun exercises, cooperative games and discovery of the aquatic environment of our mountain lakes with their varied flora and fauna.  

Walk around the lake

You will find at the edge of the lake hiking trailsperfect for a contemplative walk in nature:

Directions

Lake Rousses is now easily accessible on foot or by bike thanks to the new walking and cycling pathA pleasant and safe alternative to enjoy the site while favouring soft mobility.

New improvements have been made to the Lac des Rousses car park to enhance visitor reception and optimize parking capacity.

INFORMATION:

  • A complete circuit of Lake Rousses is not possible : a wooden boardwalk allows you to discover part of the peat bog.
  • Bicycles are not permitted on the beaches, lawns and on the footpath along the shores of Lac des Rousses and Lac de Lamoura.This ban aims to preserve peace and quiet, user safety, and the fragile nature of the site. Cycling is therefore not possible on the immediate paths around the lake, nor on the platforms leading into the peat bog.
  • For the respect and tranquility of the site, our Animal friends, even on a leash, are prohibited to the lakes of Rousses and Lamoura.

Lake Lamoura

Information – Lake Lamoura Following the latest water quality analyses, and on the recommendation of the Regional Health Agency (ARS), swimming is prohibited at Lake LamouraUntil further notice, the ban will be in effect. New tests will be conducted soon to monitor water quality. This information will be updated as soon as the results are available. Thank you for your understanding and please respect this ban.

Popular destination for nature lovers in search of tranquility, it is the highest lake in the French Jura. This little natural gem offers an authentic and preserved setting, ideal for a relaxing day with family or friends.

Its beach is ideal for swimming (supervised in July and August, every day from 13 p.m. to 19 p.m.), offering a refreshing break in the heart of summer.

Swimming area

The supervised swimming area will be open for the summer season from Wednesday, July 1st until August 30th.

The children's games and total picnic area have been developed along the lakeshore. Fishing enthusiasts will also be delighted by the lake's fish-filled waters. Exploring the area around Lake Lamoura will reveal bucolic hiking trails, perfect for a forest stroll or a cycling getaway. Be inspired by the natural beauty of the French Jura.

Please note, to preserve the tranquility and nature of the site:
All boats, motorized or not, are prohibited.
Certain areas of the lake and its surroundings are prohibited to animals and bicycles, please respect the signs in place.

Directions

To facilitate parking and optimize capacity during the summer period, traffic around Lake Lamoura is organized in one direction from July 1st to August 30th: entry via the Prémanon road, exit via the Lajoux road.

FROZEN LAKES

In winter, it is strictly forbidden to practice any activities on the frozen lakes of Rousses and Lamoura.
In periods of extreme cold and if the state of glaciation is deemed satisfactory, the lakes may be authorized for the practice of ice skating by municipal decree. In the absence of official authorization, do not venture into these dangerous areas and inquire at the Town Halls.


mountain fishing

Rousses lake

For fishing enthusiastsThe lake teems with trout, pike, and other fish, offering an ideal playground for fishing enthusiasts. Discover the reglementation of this protected natural space:

  • The population of Lac des Rousses is composed of 7 species (pike, perch, roach, rudd, tench, chub and whitefish)
  • The number of catches per day per fisherman is 4 salmonids, including 2 maxi brown trout and 1 single pike
  • It is frozen for 4 to 5 months of the year and fishing is generally practiced from the end of April to the end of November. Note that it is it is forbidden to make holes in the ice
  • Fishing from the shore is possible, especially from the pontoon located near the beach, very practical for children, provided however that close supervision is exercised
  • Fishing from a boat is authorized, but without electric or thermal motor and without echo sounder

Minimum size of captures:

  • brown trout: 30 cm
  • rainbow trout: 25 cm
  • whitefish: 35 cm
  • pike: 60 cm

Opening and closing dates

  • For trout : open on the 2nd Saturday in March and closed on the 3rd Sunday in September
  • For the pike : open on the last Saturday in May and close on January 25 of the following year, if the lake is not frozen

Prices

The Jura is an independent department for fishing; if you hold a card from another region, a local extension is required for Lake Rousses.
Purchase your fishing permit at the 4 tourist offices in Les Rousses resort: Les RoussesBois d'Amont, Lamoura and Prémanon or online here.


Lake Lamoura

Fish management and regulations for Lake Lamoura are under the supervision of a private association.
The lake is part of the private domain and does not benefit from the same regulations as other lakes in the Jura region under the supervision of AAPPMA (Approved Associations for Fishing and Aquatic Environment Protection); valid fishing permits are only available for sale in the villages of Lamoura and Lajoux. By municipal decree navigation is prohibited (float tube, rowboat, fishing canoe, paddle). 

Opening and closing dates

From the first Saturday in June to the last Sunday in November inclusive.

Limitation of catches:

  • One pike per day per fisherman
  • 3 salmonids per day per angler, only one of which must be over 40 cm
  • 10 trout over 40 cm per year

Minimum size of captures:

  • trout: 25 cm       
  • pike: 55 cm 

Fishing license prices and sales locations

  • The Guinguette du Lac (Lamoura)
  • Snow and Outdoors (Lamoura)
  • Hotel restaurant Les Arobiers (Lamoura)
  • Cheese and Flavors Shop (Lamoura)
  • Cheese factory (Lajoux)
    No fishing permit is required – Cash payment ONLY.