The Irishman jumped in the lake early on Friday, but then failed to return to the bank so a search party was dispatched, along with fire-fighters and divers, who scanned the surface and the bottom of the lake.

After a three-hour search, in which 21 people were involved, the missing tourist was found sleeping behind a bush by the local casino.

He has been treated for hypothermia, but once he feels fine he will also have to pay a fine of EUR 83 for disturbing public peace and order, according to a report from the emergency response centre.