I did a two week beach camp before Christmas and rode fat every day, sometimes many times. After each beach run I gave the whole bike a fresh water wash down and that was it. When we arrived back home I did a full strip down. Bike too. Mostly clean but places like cranks and cassette still harboured some sandy pooh. No damage though. No rust and it may have ridden through some brackish washouts etc. So the wash down was very effective at preventing pregnancy.