Peel all three cucumbers completely and slice them into thin, even rounds. Put the slices in a medium glass, ceramic or stainless-steel bowl.
In a small glass bowl, whisk the raw apple cider vinegar, raw honey, finely grated ginger and sea salt until no honey pool or salt grains remain.
Pour the dressing over the cucumbers. Toss from the bottom, separating slices that cling together, until every round looks lightly glossy.
Cover the bowl loosely with a plate or clean linen towel and refrigerate for at least 1 hour.
Toss again and serve cold. Add a small amount of fresh shiso, mint, basil or sliced scallions only if desired and individually tolerated.