Passage: Salzburg is on the banks of the River Salzach, at the northern boundary of the Alps. The mountains to Salzburg's south contrast with the rolling plains to the north. The closest alpine peak, the 1,972‑metre-high Untersberg, is less than 16 kilometres (10 miles) from the city centre. The Altstadt, or "old town", is dominated by its baroque towers and churches and the massive Hohensalzburg Fortress. This area is flanked by two smaller hills, the Mönchsberg and Kapuzinerberg, which offer green relief within the city.  Salzburg is approximately 150 km (93 mi) east of Munich, 281 km (175 mi) northwest of Ljubljana, Slovenia, and 300 km (186 mi) west of Vienna. Salzburg has about the same latitude of Seattle.

Question: What type of aid does the two smaller hits give within the city?
green relief