Large thermal park on Ischia's Citara Bay with many pools and beach access. Swimsuit and cap required, kid rules apply, accessible paths. Open seasonally.

Historic alpine thermal spa in Valdidentro near Bormio, with mountain views and indoor-outdoor pools. Book ahead, bring sandals, robe. Expect snow in winter.

Forest hot-spring stream at Bagni San Filippo with chalky terraces, short walk from town parking. Crowds, sulfur smell, bring water shoes and a small bag.

Riverside thermal baths near Monticiano in Tuscany, reached by car on rural roads. Quieter midweek, limited shade, pack water, snacks, towel. No shade.

Free terraced hot-spring pools by Terme di Saturnia, 5-minute walk from parking. Slippery rock, no facilities, arrive early in peak season most days.