Author 'Crabecanoe' (Id 208683 ) : Espace nautique of the City of GRAVELINES where flows the Aa. This river is used heavily in the crossword puzzle. The water park is thus called the PAARC, to include the Aa. Here a head of Dragon Boat, big canoe where you can take on board up to twenty paddlers. At the front, the bow is a dragon's head where the name of the DRAGON BOAT. Just behind a drum for the one that will give rhythm to the cadence. The races of Dragon Boat are always spectacular and rich in colour.