The northern portion of Pacifica is built on the 80' vertical edge of a rapidly eroding marine terrace. Apartment buildings - some older; some recently remodeled - are lined up along the edge, protected by a discontinuous line of riprap.
I assume there is some controversy about the riprap. But I suppose that riprap is all there will be in another decade or two. There certainly won't be any more beach at high tide by then. Temporary protection of private structures or long-term protection of public resources? It looks like the trade off for more riprap is better access to the little bit that's left?