To get around Athens, travelers can use the metro, buses, or taxis. The metro is the most efficient and affordable way to travel, with a one-way ticket costing around $1.50. Taxis are a bit more expensive and can range from $10-$30 depending on the destination and time of day. It's also possible to rent a bike to explore the city on your own.
If you have more time, consider visiting the Temple of Olympian Zeus or taking a day trip to the nearby beaches. If you have less time, skip the National Archaeological Museum and focus on the highlights of the Acropolis and Agora. Remember to wear comfortable shoes for walking and bring plenty of water, especially during summer months.