There are several repeaters in Corsica. They are not always active, though...

  Indicatif Canal Fréquence Shift CTCSS Locator Altitude Rem
  TK5ZCF R1x 145.6375 Mhz -0.6 MHz 88.5 Hz JN41iw 770 m On TKNet
  TK5ZPS R5x 145.7375 MHz -0.6 MHz  114.8 Hz JN42qq 950 m  
  TK5ZCG FRU6H 430.150 MHz +9.4 MHz  88.5 Hz JN41js 530 m  On TKNet
  TK1ZAR FRU6H 430.150 MHz +9.4 MHz   JN42nh 700 m  
  TK1ZBG FRU4XH 430.1125 MHz +9.4 MHz   JN42ri 290 m D-STAR + 144.875 MHz

The folowing map will help you to locate them :