The town is small enough to walk in fifteen minutes. The peninsula is not.
By car. Essential for anything off the main coast road. Slea Head Drive is signposted as a one-way clockwise loop in summer — follow the convention, as the road is too narrow for two cars to pass comfortably in many places.
By bike. Dingle Peninsula is one of the great cycling routes in Ireland: the Slea Head loop is a 47 km day, mostly flat, with a couple of harder climbs near Slea Head itself. Several outfits in town rent bikes by the day and provide route maps. The Conor Pass is a serious climb but rewarding for the fit.
By bus. Bus Éireann runs occasional buses to Ventry, Dunquin, and around the western end of the peninsula in summer. Schedules are limited and only useful if you are not in a hurry.
On foot. The Dingle Way is a 179 km walking trail that loops the peninsula in 8 to 9 days. The most spectacular stages — Dunquin to Ballyferriter, or the descent off the Conor Pass — can be done as day walks from the road.
Taxis and tours. Several small operators in town run guided minibus loops of the Slea Head Drive, which is by far the easiest way to see the peninsula if you are not driving. Allow half a day.