Attention beginners: it gets deep quickly at ‘s-Gravenzande. There are big waves and during the rising tide and there can be a big current. Flood flow from South to North, 2 hours before HW to 3.5 hours after HW. Ebb flow from North to South, 3.5 hours after HW to 2 hours before HW. There are breakwaters here, but these are often not clearly visible. Wave surfers are also available on days with beautiful waves.