You're in the right place if you are travelling north via rede expressos. No signs however. The spot to wait is across the street from the tourist information booth

Gentili e disponibili a fornire indicazioni.

Een bushalte, 2 zelfs! Awesome. De foto is niet representatief, de telefooncel staat namelijk bij een van de haltes in de buurt.

This is where you can catch the EVA bus to Lagos. You catch the bus going TO Lagos on the side of the street where the Primary School is located. Across the street is the bus stop where you will get off the bus that arrives FROM Lagos coming into Sagres. Takes about an hour to get to/from Lagos. At the time of this writing it was 8.10 Euros round trip Lagos to Sagres.

Зупинка в бік Лагушу знаходиться навпроти інфоцентру (через дорогу) Квитки у водія.

The most accurate and reliable bus time table is put up on the bus stop itself, the info on the web isn’t updated

The location is correct, the bus stop on the opposite side of the road to the Tourist Information Centre. Maybe RedeEx might maybe, just maybe, think about putting a sign or poster at the bus stop?!