I think...not all..but the best of them.!!! Have a good stay An advise...if you Drive there go through Setubal...take the short ferry 🚢to Trois...its much shorter.. and nice !

Comporta is about 75 miles by road from Lisbon, a long trip therefore. There is no public transport taking that route however. There is a 'short cut' via Setubal and using the ferry across to Tróia. Setubal is well connected to Lisbon by trains and buses. The trip takes about an hour. Trains - fertagus dot pt (stops at various stations in Lisbon) and buses at tsultejo dot pt (various routes from Lisbon, including some express servcies using the main highway) the ferry dock is about 700 yards from the railway station in Setubal, a little less from the bus station. The ferry crossing takes 25 minutes and it runs once each hour in October - atlanticferries dot pt From Tróia to Comporta there are around eight buses each weekday on a variety of routes, taking 20 minutes for the trip. However on a Saturday or Sunday there are only two buses, at 0845 and 1815. Bus website rodalentejo dot pt and is only in Portuguese.

Ich glaube nicht.

I am sorry to say I don't know for sure, but it seemed like an area where you could get a cab. However, I don't imagine you'd just end up there. You have to either have found your way there or gotten one of the bicycles that you can rent.

Si, hay zonas con servicios. Nosotros estuvimos en dos zonas muy apartadas y no los había. Es cierto que buscábamos un lugar solitario. Ten en cuenta que la playa tiene más de 60 kms. A 1 km de el pueblo de Comporta y en Troia, seguro que si.