On 31 July 2017 at 13:25, Andy Mabbett <andy at pigsonthewing.org.uk> wrote: > Anyone fancy doing a survey? ;-) No, thank you all the same :) More to see and to read, could be radar, weapons, water treatment and whatnot: https://www.quora.com/Whats-the-nature-of-the-hexagonal-structure-China-is-building-in-the-South-China-Sea -- althio