The Payré Estuary
For evidence of the ice age, look no further. Here the sands of the Loire were brought together, creating the terrain which man would use, in the 19th century, for developing oyster farming.
Apart from its natural wealth and biodiversity, the Payré estuary is outstanding for the colours of the landscape – turquoise blue, oak green, sand – and particularly for the contrasting estuarial dunes: grey Moroccan, the perched dunes of Grottes, those of Veillon with planted woods, and others such as the Veillon sandspit, where you can bask in the island atmosphere.