Two days ago I went out to a place near Almograve beach (southwest Portugal), to photograph some star trails and the Milky Way. This is a "dark enough" kind of location, sandwiched between the villages of Almograve (about 1 km to the south) and Milfontes (about 10 km to the north). I wanted to have the rotation around Polaris, so I had to live with the light pollution coming from Milfontes (first photo). The cliffs are illuminated from people strolling through the beach to the right, beyond the field of vision; it actually provided some interest to the cliffs. In the second photo, of the Milky Way, there is light pollution from Almograve, but I am happy with it, it's a nice record.
The best part of the night is that my daughter wanted to accompany me, which was great!
As for technical details. All with Canon 6D and Zeiss 25 f/2. The first photo was combined in Starstax (wonderful little programme for this), from about 51 exposures of 30 seconds each, at f/2.8 and ISO 1600. The second one is a straight 20 second, f/2.8, ISO 1600.
I plan to explore the area a bit more, especially to the interior, near the town of Odemira, which will provide some more darker locations.
Kind regards.