|Location:||Near Ulassai. From Cagliari north on road to Tortoli, turn left to Jerzu and Ulassai. At the city limits of Ulassai turn left. (39°48'54.98"N, 9°29'16.70"E)|
|Open:||APR+OCT daily at 11, 14:30, 17. MAY-JUL + SEP daily at 11, 14, 16, 18. AUG daily at 11, 13, 15, 17, 18:30.|
|Address:||Cooperativa "Su Bullicciu", Via Dante 69, Ulassai (Nu), Tel: +39-0782-79707, Tel: +39-0782-79805, Tel: +39-0782-79724.|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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Grotta di Su Marmuri is a huge cavern, which is very rich in dripstones. Stalagmites up to 20m high and walls covered with cave coral.