Well, there's beaches near some coastal cities that afford survivable landings, but may be risky for others.
Last year there was a tragic case near Lisbon where two people on the ground died. It was a flight lesson with an experienced instructor, who followed protocol and landed on sand at the water's edge. (My understanding of the discussion at the time was that hitting water with fixed landing gear is an almost certain death sentence for the plane passengers, because it flips over instantly.)
Unfortunately, without power, the pilot missed a more deserted stretch and ended up in a section of the beach with quite a few people enjoying the summer at the seaside.
One of the reports in the Portuguese press: http://observador.pt/2017/08/02/avioneta-despenha-se-na-prai...
And as others have pointed out, helicopters are perfectly capable of autorotating in case of power loss.