Please note: non-smoking house. 1 small pet/ dog allowed. For occupancy by 4 persons not available: one bedroom. Cottage "Petra", 170 m a.s.l., detached, surrounded by trees and meadows. 6 km from the centre of Palau, 8 km from the centre of Arzachena, 25 km from the centre of Porto Cervo, on a slope, 3 km from the sea, in the countryside.. Petra Electric KM 42.17 Petra Electric KM 34.07 Petra Electric KM 44.07 Petra Electric KM 34.00 Petra Electric KM 90.07 Coffee maker Petra Electric Frequently Asked Questions. Below, you will find the most frequently asked questions about the Petra Electric KM 42..