13km (8 miles) SW of Setúbal; 37km (23 miles) SE of Lisbon
The fishing village of Portinho da Arrábida, a favorite with vacationing Lisbon families, is at the foot of the Serra da Arrábida. If you drive here in July and August, watch out. There's virtually no parking, and the road should be one-way but isn't -- you can wait for hours to get back up the hill. In addition, the walk down and back could qualify you for the Olympics. Try to park on a wider road above the port, and then negotiate the hordes of summer visitors on foot.
There's really no place to stay in Portinho. Your best bet is to return to Sesimbra or to drive on to Setúbal for the night.