REGARDING the plan for a surfing site at Hengisbury Head, some readers were concerned about messing around with nature. It would be more like returning to nature! If the groynes were not there, I think we would have sand around the point, with waves peeling down the east side. The problem is that the groynes were installed to protect the coastline, and the long groyne in particular, to limit the longshore drift of sand from Poole Bay.

Readers might wonder why groynes were needed in the first place. In the 19th century, the iron dogger stones were mined from the cliffs and offshore of this. This weakened and eroded the headland, causing a minor clockwise rotation of Poole bay, and being more angled to the prevailing swell direction, more prone to longshore drift and increased sand loss to the east.

I think it would be possible to remove the groynes, restore the headland to a more natural form, and enable surfing along the east side of the point whilst providing alternative coastal protection. However, this would not be easy or cheap.

DAVID WEIGHT, Shillito Road, Poole