Lake of Tremelin Activities for all in a preserved nature

Lake of Tremelin

Need to air out your mind, cut yourself off from everyday life, take the kids out or bubble in the forest? Direction the Lake of Trémelin in Iffendic!

A 30 min from Rennes and at the gates of the Forest of Broceliande, the Lake of Trémelin is a small corner preserved between moors and forest where it is good to stroll, sunbathe, take a dip, exercise, discover exhibitions of contemporary art …

In July / August do not miss the Wednesdays of the Lake: shows, concerts, outdoor cinema. A picnic, a dose of good humor, a little plaid and let’s go!


The lake of Trémelin, is a 50-hectare body of water, located in the heart of 220 hectares of forest and moors. A beach allows you to swim safely in the summer. The youngest can splash around without any worries, in water at 20°C, and the older ones can use the platform to make the most beautiful dives. The supervised beach and the excellent water quality allow the Lac de Trémelin to have the Blue Flag label.

You can also initiate yourself to the joys of fishing. The tourist office located at the edge of the lake offers fishing passes by the day (weekly and annual).


Leisure activities


Thrill seekers, challenge the peaks and walk from branch to branch on the different tree climbing courses facing the lake. Take the giant zip line over the water, adrenaline guaranteed! There are even courses for 3 year olds.

Aventur’O Lac is currently closed. Reopening for spring 2022!

Water activities

On the water, sail thanks to the different boats available: canoe, kayak, pedal’eau. Feeling of freedom guaranteed and friendly moment assured.

  • Water pedal – 30 min: 7 € for 2 places
  • Water pedal – 1h: 12€ for 2 places
  • Water pedal – 30 min : 12€ for 4 places
  • Water pedal – 1h: 19€ for 4 places
  • Canoeing and Kayaking – 1h: 11€ for 2 people
  • Canoeing and Kayaking – 1h: 7 € for 1 person

Aventur’O Lac is currently closed. Reopening for spring 2022!

Please note, private boats (canoes, kayaks, paddleboards,…) are prohibited on the Lake, for safety reasons.

Horseback riding

The equestrian center of the Lake of Tremelin offers rides for adults and children alike, whether you are an expert or a beginner!

  • 30 min pony ride – 13 €
  • Ride 1h with pony or horse – 25 €

Information and reservation at 06 32 56 64 09.

Relaxation areas

Le Lac de Trémelin also provides youwith relaxation areas so that you can spend unforgettable moments with family and friends. Ping-pong table, petanque areas, möllky, shuffleboard, yoga area, book box, playgrounds… You are bound to find your little piece of paradise here…!


You can initiate yourself to the joys of fishing. To do so, all you need is a fishing card that you can take online on the Internet (annual, weekly, daily card). Do not hesitate to come and withdraw the fishing plan at the tourist office.

Hiking trails from the lake

Starting from the Lake, go for a hike by taking one of the hiking, horseback riding or mountain biking tours. There’s nothing better to exercise and fully enjoy nature! There are even walks adapted to children, think about it!

You will be able to reach thevalley of La Chambre au Loup, the Domaine de Boutavent as well as the Careil ornithological reserve. If you follow the GR37, you can go from Montfort sur Meu, Petite Cité de Caractère, to Tréhorenteuc, or follow the GRP Tour de Brocéliande and pass through Paimpont.

The Geocaching routes motivate children to walk and go to discover treasure caches. A way to walk while having fun, ideal for the youngest. It’s up to you to find KorryGan, Queen Aman, Poudredesscampec and others…

Exhibitions on the lakefront

L'aparté, place of contemporary art

We can not go without this place when we are at the Lac de Trémelin, we necessarily spend a moment in his day. It intrigues already by its wooden structure added to this former hunting lodge (it was at the time the house of the owner of the domain). We approach then and we can not help but be curious, in the interstices of the wooden cladding we distinguish some shapes and colorful objects … we launch, we enter!

The team of L’aparté is there to welcome you but especially to give you a hand in the reading of the works on display. Whether you are a novice or seasoned in contemporary art, understanding the path between the original idea and the final realization immediately facilitates the relationship between yourself and the artwork!

So don’t hesitate any longer, enter L’aparté to awaken your senses. At the end of your visit, if a burst of creativity should come over you, a drawing desk is at your disposal to let your imagination or that of your children run free.

L’aparté is also a place of residence and creation. Each year, five confirmed or emerging artists are hosted on site and take advantage of this immersion to develop an original project, thought in connection with the specificities of the place. A vernissage and an exhibition close this time of experimentation.

And because there is no age to learn about art, visits and workshops related to the current exhibition are offered to schools throughout the year. Sometimes duringschool vacations workshops are offered to the general public!

Open air exhibition "Remember Tremelin

Remembrances, memories…Tremelin, its tour of the lake, its picnic tables, its children’s games, its beach… But how was it before? 10, 20, 50 or even 100 years ago? Cécile, in charge of the heritage of Montfort Community, plunged into the archives, private collections and even into the memory of the inhabitants that she met for the occasion.

The open-air exhibition “Remember Tremelin” is proposed onthe whole site, all year round, retracing an incredible history punctuated by lavandières, floating wrestling matches or parachute releases… On each building bordering the Lac de Tremelin, old photos also show you what the Lac looked like several decades ago…

Also to be discovered: some videos of testimonials from locals who talk about the old marsh, the plane crash, the history of the frozen lake

A few steps from the lake of Tremelin

Equipe Office De Tourisme Montfort CommunautéEquipe Office De Tourisme Montfort Communauté
©Equipe Office De Tourisme Montfort Communauté


Tourist Office of Montfort Community
6, Trémelin – 35750 Iffendic
Tel : 02 99 09 06 50
E-mail :

Website :

In the vicinity Discover the other must-sees of Destination Brocéliande