I will be in Athens for 2.5 days beginning next Saturday (and then I will be on Crete for 4 days, and then Rome for 3.5 days). I am considering taking a day trip from Athens but am wondering if that makes sense given my limited time. The Island Cruise has mixed reviews and the trip to Nafplio looks great. I'd love to both see a historical site outside Athens and relax on the beach, but the drive seems less exciting. That all being said, is a day trip worth it, giving me just a day and a half in Athens to see the historical sites?