We only stayed for 3 nights but it was a lovely short break. The location of the villa is close to Loutra. A short walk to the beach that has a hot spring that comes out to sea. The house is well equipped, it has a lovely outside space to sit to have an early morning coffeee or a late evening meal.
Natalia and her mum Vaso gave us a warm welcome, and they were close by if we needed anything.
Kythnos island has some great beaches for young children. A lot of them are sandy and shallow.