'Along the banks of the Seine', between the river and the forest, is a lovely way to discover what makes the marsh so special: the land that is partly flooded each winter inside the loop formed by the Seine at the foot of the Pont de Brotonne. Meadows full of horses, sheep and cows, fields of maize and barley, ponds and gabions, poplar groves and pollarded willows... With the added bonus of beautiful traditional houses and a glimpse of the former royal forest and its biodiversity. There is a horse-riding area at the start of the loop.