Puglia has 3 Protected Marine Areas (Isole Tremiti, Torre Guaceto and Porto Cesareo). One of the nature itineraries most popular with tourists is the “Valle dei Giganti†(Giants’ Valley), where you can admire millenary olive trees with trunks measuring up to 10 metres in circumference. Stays in farm holiday establishments and educational masserie (traditional farmhouses equipped to accommodate school parties and large groups) are both fun and instructive.