Taking a half-day trip from Athens to the breathtaking Temple of Poseidon at Sounion avoids the hassle of dealing with the crowded public buses or paying a great deal more for a taxi. A one-day tour to Delphi with lunch is possible, but it's a very long day; a two-day tour (with an overnight in a first-class hotel) gives you more time to explore this wonder.
Dolphin Hellas. With headquarters within walking distance of the Acropolis, this full-service agency provides a range of services for individual and group travelers: hotel accommodations, villa rentals, ferry tickets, air tickets, organized coach tours, car rentals, fly and drive programs, and transfer and guide services. Syngrou Ave. 16, Makriyianni, Athens, Attica, 11742. 21092/27772; www.dolphin-hellas.gr.
Key Tours. Showing travelers around Greece since 1963, this well-respected firm offers numerous scheduled excursions, including day trips to Delphi and Meteora from Athens. Athanasiou Diakou 26, Athens, Attica, 11743. 210/923–3166; 210/923--3266; www.keytours.gr.
Trekking Hellas. Outdoor activity company offering a number of kayaking, hiking, climbing, cycling, and historical tours around Delphi, the Athens Riviera, and Mt. Parnitha. Dimitriou Gounari 96, Maroussi, Athens, Attica, 15125. 21033/10323; trekking.gr.