Travelling to Western Pellopenese on 12 June and would like to walk the gorge from Demitsana to Gortys ancient site. I understand you can access the gorge from a gate at the water power museum at Demisana. Can someone please tell me how long roughly a round trip to Gortys from there would take and can you get back into the musuem car park via the gate after 3pm when the museum closes ? If not, it it easy to get back into the village - would the car park itself be physically closed for parking after 3pm ? Any advice gratefully received.