hi Mike ...last year we were at Diversified Yacht Services in Fort Myers Beach having some insurance work done and there was a bad storm with more than a 6' storm surge we were on Floating docks and our boat and all the other boats there just floated up and down with no issues ...the CG station is right next to then and they took their boats out cause they have Fixed docks ...there was 2' of water over the Bulk Head at Diversified with with the whole area flooding....boy was i glad i was on fixed docks...didn't have to keep letting up on my lines if i would have been on Fixed Docks.....again they have very tall and very thick concrete pilings and Docks