![Pont Saint Martin Grand Lieu bucolique nature paysage commune de Loire Atlantique bourg](/sites/default/files/styles/square_1x/public/2021-12/Pont-Saint-Martin-4712.jpg?itok=xJ3av4lD)
Partly situated on the lakeside and crossed by the river Ognon, Pont Saint Martin is rich of a diversified natural heritage.
![Pont Saint Martin](/sites/default/files/styles/max_325x325/public/2019-03/pont%20st%20martin%20%281%29.jpg?itok=3DI1Lg8M)
The Prés Moreau site hosts an educational garden, an interpretive trail and an enclosure with hives allowing visitors to discover and observe bees safely.
![Observatoire sur les marais à Point Saint Martin](/sites/default/files/styles/max_325x325/public/2019-05/Observatoire%20PSM%20petit.jpg?itok=JHQvJkoF)
Not far is the Marais de l'île : a remarkable site, result of a balanced approach of man-made and natural work. The Tour du Lac circuit goes through the site which becomes an island during winter floods. It houses fauna and flora of patrimonial interest.
![Dames de pierre à Pont Saint Martin](/sites/default/files/styles/max_325x325/public/2019-03/Pr%2B%C2%AE-Moreau-2006.jpg?itok=lz1sUhFQ)
Finally, two famous menhirs stand in the country : they are the Stone Ladies whose legend is worth being heard…
To do in Pont Saint Martin :
Chain boat, Prés Moreau, kayak and canoe rental, interactive walk Baludik, golf.