'Sneaker' waves along the Pacific coast, are very real...its like you are running along the beach, and the waves are just regular small waves...its happened where people have turned their backs to the ocean, and all of a sudden, a huge enormous wave comes along out of nowhere, and sweeps them out, and often drowns them...
That happened once up in Mendocino California,(where Murder she Wrote was filmed)just a years ago...
A woman was just being a tourist, and climbing around some rocks and boulders, bordering the ocean, in Mendocino
All of a sudden out of nowhere, other tourists saw this huge wave come crashing in, and it swept that woman right off the boulders, and she drowned...