Aegina is roughly 13 kilometres from north to south, and the main road that circles the island is mostly flat and well-surfaced. That makes it one of the easiest Greek islands to explore independently, provided you pick the right transport for how much ground you want to cover.
Scooters and small motorcycles are the most popular option among independent travellers. Rental shops cluster near the port and charge around 20 to 30 euros a day depending on the season. You do not need a motorcycle licence for the smaller 50cc models in Greece, though a car licence is technically required. A full tank covers the island several times over, and parking is never an issue outside the town itself.
Bicycles are a good choice for the coastal road between the port and Perdika (about 9 km, flat) or for leisurely exploration around Marathonas. The roads heading inland toward Mesagros and the Temple of Aphaia gain some elevation and are less suitable for casual cyclists in high summer heat. Rental prices are around 8 to 12 euros per day.
The public bus network covers the main routes: port to Agia Marina (passing the Temple of Aphaia turnoff), port to Perdika, and port to Souvala on the north coast. Buses are infrequent — check the schedule at the port bus stop as soon as you arrive. Taxis are reliable and metered; the rank is just off the ferry dock. For longer journeys or heavy luggage, they are usually the most practical option.
Photo: Zde / Wikimedia Commons (CC BY-SA 4.0)