Tours and activities Trieste Now Experiences and tour packages Trekking & bike Frida Kahlo Tours and activities SUP in Trieste Trieste HopTour FVG Card SUP in Trieste Admire the charming city of Trieste from the sea in SUP! Trieste HopTour Visit Trieste by bus! A hop-on, hop-off tour from Piazza Unità d'Italia to San Giusto Castle and Miramare Castle!