Our day begins in Rogaška Slatina, famed for its crystal and mineral springs. Legend says Pegasus struck the ground here, creating the Donat spring, the world’s richest magnesium mineral water. After tasting the water, continue to Ptuj, Slovenia’s oldest town, whose cobbled streets and medieval castle tell stories of Roman times. We end in Maribor, the country’s second-largest city, with free time to explore its cafés, riverfront and wine heritage.