Grotta Gigante information
Lonely Planet review
The area's big-ticket attraction is near Villa Opicina, 5km northeast of Trieste. At 120m high, 280m long and 65m wide, it's one of the largest and most spectacular caves that's accessible on the continent. It's easily reached from Trieste on bus 42, or by tram 2 and bus 42 in the other direction.