Taylor's Port cellars in Vila Nova de Gaia (1692, 3,500 oak casks aging port, the audio tour walks the cellar floor, tasting flights at the end). Day two: Graham's Port cellars next door (the tawny program is the bachelor's pick). Day three: Douro Valley day trip (terraced vineyards, river cruise, lunch at one of the Quintas). Sleep at the Yeatman Hotel (overlooking the cellars from the south bank, rooftop infinity pool) or Memmo Alfandega (Ribeira riverfront). Francesinha sandwich at Café Majestic. Porto (OPO) is direct from major hubs.
Five quick questions, then we build the full itinerary — lodging, daily schedule, dining, bars, the group-chat message — and drop you into a Trip Room you can share with the crew.