Porquerolles is a little seaside-resort village, with yacht harbor, port area, restaurants and cycle-rental shops. There is a large, open village square in the style of a North African colonial settlement, lined with large eucalyptus trees; the village church sits at the end, with the 16th-c St Agatha's Fort on a hilltop behind. It's a short walk up to the fort, with a great view at the top. If you only have a short time, we would suggest a walk past the Plage de la Courtade (or Grande Plage) to the Fort de la Repentance and to the semaphore; both have excellent views out across the plains and seaside and the Plage de Notre-Dame cove; and if it's clear, the other islands and the mainland (about 2 hours out and back). The Fort appears as a low, fortified structure on the hilltop, with (dry) moat all around. In fact, it's mostly underground inside the hill. It's still an active fort, so no entry, although it's alright to explore around it. When we passed by, the troops were barbequing lunch, and the only unfriendlyness we encountered were the attack seagulls when we got too close to their nests with fuzzy young hatchlings in the nearby rocks. A walk across the island to the lighthouse (phare) is popular, passing through botanical plantations including fig trees and olive trees. (Panels even show the variety of each individual olivier.) The area near the lighthouse has good views of the calanques.