A specific question, asked carefully, answered with a pendulum and a map. Findings posted back to you within a week.
You send a question, an address or a coordinate, and whatever context helps. I work the question with rod and pendulum over a printed map, write up what came back, and post it to you within seven days. Most questions are about land, water, or whether to do the thing.
This works whether you're in Cornwall or California. Asynchronous on purpose.