Do not use the car park next to the River Leguer in Lannion without checking the tidal conditions as the sea sometime surges causing flooding. If unsure, do not park there between 5.00pm and 8.00pm. I was caught out and parked my car in a crowded car park at this location between 5.00pm and 8.00pm and when I came back, my sports car was flooded and in 2 foot of water. At the time of writing, the problems with my car maybe terminal. There is one small sign in French at one of the entrances but not at the entrance I came through. There is nothing alerting parkers to this matter at the large tourist office in the car park or at the pay station, neither is this area cordoned off or marked in any way. My car wouldn't start and eventually had to be towed away. However, during this ordeal, the people of Lannion were fantastic. I had many offers of help, offers of accomodation and a couple who insisted on driving us back to our hotel.