At Paraje El Quintón, inland from Colonia, this farm runs vines and olives side by side and sells the pairing as one visit — enoturismo and oleoturismo, as their own site has it. You see the presses for both, and taste both.
Uruguayan olive oil is a young industry, barely two decades old, and largely unknown outside the country. Tasting it fresh from an almazara next to the tannat it grows beside is the kind of thing this guide exists to point at.
The turning is a camino vecinal with no number, so get directions when you book. They answer WhatsApp on the number below, which also matches their Ministry of Tourism registration.