The waters above the barrage are permanently held at the level of an average high tide .
The waters above the barrage are permanently are used for watersports such as canoeing , jet skiing , dragonboat racing and incorporates a 1 km rowing course .
The waters above the barrage are permanently held at the level of an average high tide and are used for watersports such as canoeing , jet skiing , dragonboat racing and incorporates a 1 km rowing course .