The star (heritage place, MapQuest) for "Estação arqueológica do Alto do Couto da Pena" is incorrectly placed; it should be about km 1 southwest, on the hill called da Pena (already showing in openstreetmap)

Via fechada exceto residentes. Colapso parcial da faixa a norte do miradouro e diversas derrocadas ao longo da estrada. Ambas as ligações com a via rápida da Caparica/IC20 bloqueadas com barreiras de betão.
Não está a decorrer qualquer tipo de intervenção e pelo estado de degradação da estrada aparenta abandonada.

"This foot path seems to nota exist, até least officially. There is no distinct path, just bushes. "
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2022-07-18T07:38:05Z
POI has no name
POI types: highway-footway
#organicmaps

building

building missing