Scattered Monks

From the introduction:

This adventure can be run as a level 7 adventure for 5 players, or can be easily customized to a party of any size or level. It can work as a small side adventure in an existing campaign, as a standalone one-shot, or the start of a new adventure. Use the links to the tools in their relevant section to customize the adventure to your party.

The players stop at a renowned monastery, either because they need the help of the monks for a different task relevant to your campaign, or as a sightseeing destination on their travels.
The monastery has a small hamlet nearby: Sedge Plains, with the fortress being the monastery.