Halve the cucumbers lengthwise and cut into half moons. Halve the grape tomatoes. Thinly slice the shallot, and run your knife through a few times to roughly chop.
Add the cucumbers, grape tomatoes, shallots, and mint to a mixing bowl. Add the white wine vinegar, extra virgin olive oil, honey, and sea salt. Mix everything to combine thoroughly. Give it a taste and season with more salt if desired.
Notes
I think this salad is best served fresh, rather than made ahead of time, but it can benefit from sitting for 15 minutes in the refrigerator to let the flavors settle in.