One of the great things about the Centre-Val de Loire region, like most of France, is the diversity of its countryside. This makes for some great walking experiences, you can start of at the centre of a picturesque village walk through fields of wild flowers in open countryside and on to forest lanes. The region also has great rivers in the Loire and its tributaries giving the walker a different perspective with valleys and riverbanks rich in flora and fauna. Another popular ramble is among the vines of one of the many vintners where there are opportunities to learn about as well as taste the delightful wines of the region.
You can see some examples of walks in Southern Touraine here: