While staying in Patra, we visited many of the ancient sites around northern Greece and the Peloponnese: Olympia, Mycenae, Delphi, and Epidavros.
The resort was in a fair location to visit these places. However, all but Olympia are a couple of hours away. The main highway (E65) is fast, but when driving on the side roads, expect it to go much slower. There are many small, twisty roads throughout the area. These smaller roads are great for driving on, but just remember to plan for a longer travel time.