Island Life Magazine Ltd December 2014/January 2015 | Page 79

ON THE WATER "It became clear that marina developers were not prepared to put investment into an outer harbour that did not have protection." challenging. At the eastern end of the breakwater there are some 17 metres of sand and silt to get through before you reach the underlying rock beds. Capt. McIntosh explained: “Phase One was to build the core of the breakwater, which entailed a 1.5-metre layer of sand and gravel on the seabed as a filter, followed by 11,000 wick drains pushed down through the core to the rock bed below. “A geo-textile blanket v2F