City routes
Rome and similar cities may combine short transfers with substantial walking from drop-off points. A typical pilgrimage group in Rome covers 8–12 km a day on cobblestones, and the Vatican Museums route to the Sistine Chapel alone is roughly 2–3 hours and several kilometers. Cobblestones, curbs, crowded pavements, and standing in churches all contribute to fatigue. Ask whether there are places to sit during explanations and how often the group can take a break.
Hills and trails
Assisi's streets, Medjugorje's rocky hills, and a Camino stage are different physical experiences. Assisi's main basilica stands at about 400 m with steep lanes, and the walk down to the Porziuncola is about 4 km (45–60 minutes). At Medjugorje, Apparition Hill climbs about 200 m on rock in 20–40 minutes, and Cross Mountain (520 m) is a 1.5–2.5 hour round trip. On the Camino, beginners and supported groups should plan 12–18 km per day, experienced walkers 20–25 km. Footwear, balance, weather exposure, and repeated days matter. Do not assume a route is easy because it is popular or religious in purpose.
Alternatives that actually work
An optional walk should have a clear alternative, meeting point, and return plan. Ask whether transport can shorten a stage and what that means for any certificate or itinerary objective: the Compostela requires the last 100 km continuously on foot, so a coach ride inside that stretch breaks the claim. Luggage transfer on the Camino costs about €5–8 per bag per stage and removes the pack without shortening the day. A sensible choice to rest should not leave a traveler stranded or uncertain about rejoining the group.