The Ragas cave (b) or overflow spring (a). Photo taken on 18th January 1999: one of the highest karst floods observed over the last three decades at the Ragas. The rainfall recorded at the Toulon station and Le Castellet aerodrome station was respectively 90 mm/d and 110 mm/d on 17th January 1999 (with a previous rainfall event on 10th January 1999 of 66 mm in Toulon and 56 mm in Castellet); no data were available on the Siou-Blanc plateau where the rainfall is usually higher.