Rihanna has ticked a major item off her bucket list after posting holiday snaps of herself in the shadow of Sicily's active Mount Etna.

The singer has been celebrating the end of her Monster tour with Eminem on vacation on a yacht off the coast of Italy, and she has been keeping fans up to date with her travels thanks to a series of sexy shots she has posted online.

In recent Twitter.com posts she boasts she has snorkelled "by old pirate caves" near the island of Ponza and "sailed up to an active volcano for dinner".

She also posted images of lava flows from Mount Etna in Sicily.