I booked this trip for my cousin (aged 15) and myself because it was a private tour that was different from the norm and would interest us both. Nikos was great – friendly and professional.
The Cave of Lakes is beautiful and atmospheric; Corinth is fascinating (tip – go to the museum before wandering around the site); and the Odontotos Railway journey is an opportunity to view the scenery at a leisurely pace, from snow-topped mountains to fast-flowing rivers. Lunch was also really good, with the chance to try authentic Greek cuisine.
I cannot recommend this tour highly enough.