Day 4
Ancient Merv and overnight train to Kerki
Depart Ashgabat around 07:30 and travel east toward the Mary region (about 360 km, 3.5–4 hours). Lunch in Mary or nearby Bayramaly, then a guided visit to UNESCO-listed Ancient Merv: the Mausoleum of Sultan Sanjar, Greater and Lesser Kyz Kala, the Askhabs Mausoleums, Erk Kala and Gyaur Kala. Evening transfer to Mary Railway Station and board the overnight sleeper train to Kerki (current programme based on a departure around 21:25; timetable reconfirmed for the travel date).