if I remember right a few years back a guy had an engine out in SC and loss of oil,..which made it difficult to see due to oil on his windshield ,..when he landed ,..he hit two beach walkers/runners from behind that had headset radios on walkmans ...and one did not survive,..
but now an island ,,chances are beach walkers/runners are not going to swim a channel to run an island beach
awesome landing there Jim for an ole guy