Our family of five will be touring Italy early in May. We prefere to seek out the "roads less traveled" so will be renting a car and staying in a rental villa in the Tuscany countryside. Bagni Di Lucca looks like a beautiful place to stop. What would be the highlights we should not miss, where could we park our car, is there public swimming in May or any way to experience the thermal springs, and where in the river can you swim? Thanks for any info!