This appears to have been a village built on piers over a swampy or riverine area, like Lake-town in "The Hobbit", but consistent with a longstanding practice common in prehistoric Europe. The Sea People were mentioned a couple of times in Egyptian records of the New Kingdom; they didn't have the grandiose existence posited for them by alleged scholars. They are a curious group -- they had no homeland, left no settlements, left no characteristic burials, weapons, language, DNA -- and yet they are used as a kludge to account for a dark age that never happened.
the legend of the lake dwellers (zürich, switzerland)
http://www.swissinfo.ch/eng/rediscovering-the-legend-of-the-lake-dwellers/1288560