Pick the right visit format first
Best for a quick heritage stop: church and cemetery only, both free and close together. Best for a fuller visit: add the catacombs above Petersfriedhof for the rock-cut chapel experience on Mönchsberg. Make this decision first, then shape the rest of your day around it. Book now.
Time catacombs before the midday closure
The catacombs run in two windows, from 10 am to 12:30 pm and from 1 pm onward, so the break can interrupt a tight route. If your priority is doing everything in one pass, start before 12 noon and keep the stair section for the middle of the stop. This keeps your pace steady and avoids idle waiting.
Build one compact Old Town loop
After
Stiftskirche St. Peter, run one clean continuation:
Hohensalzburg Castle for hilltop views,
Mozart's birthplace for a Mozart-focused route, or
Mirabell Palace for palace-and-garden contrast. One add-on usually gives better quality than trying all three in the same afternoon. You keep energy for the details that actually matter.
Use a split plan for mixed mobility groups
If your group mixes stroller users, older travelers, and stair-hungry history fans, split briefly and regroup in Petersfriedhof. The church and cemetery stay the common core, while the catacombs become an optional branch. In practice, this avoids friction and keeps everyone in a better mood for the rest of Salzburg.