Hanging gardens of Marqueyssac
An hours drive up the Dordogne river from Manoir du Suquet, you will find the Marqueyssac gardens. They are high on a hill with wonderful views of the Valley of 1000 Castles. It's a large garden with great lunch restaurant. Walk the paths and then enjoy a lunch in the shade before paddling down the river from Le Roc de Gageac. That's at great itinerary for day.
On Thursday nights during summer, you can enjoy the sunset from the garden and the lights when darkness falls. It's enthralling.