On the way to Lisbon, from Oporto in north-south direction, you can find this point of the Portuguese coast. It's not quite as famous as the Cabo de Roca, the most western point of the Iberian Peninsula, but it's very nice. You should visit because you find amazing things there: rocks from another planet, vertiginous cliffs, capricious rock formations, etc..
The Berlengas archipelago is a Biosphere natural reserve 15 kilometers from the municipality of Peniche. There you can get there by boat leaving the port between 9:30 -10:00 h. In the morning it depends on the time of year and returns from the island at 16:30. It is a paradise that is certainly worth a visit, we can traverse the island by boat through the cliffs and swim in crystal clear water beaches, is also an ideal place for birdwatchers for nesting seabirds.