St omer, claire marais

Sorry to bore you guys but I have just booked to go to France just outside of Calais. The town is called St omer and there are hundreds of waters in an area called Claire Marais. It looks great but has anyone been there and could pass on a few tips. It's all I seem to do ,ask for help, but I am a late arrival at this fishing game and need all the help I can get

you should have probably put this one in the carp section seamus they might have found it quicker.