Morning
A last quiet hour on the terrace, then the scenic train back to Porto (~2h20) — aim to be in the city by early afternoon. Drop bags at the return hotel.
Afternoon
Tram 1 to Foz or the Casa da Música guided tour, then Bombarda/Cedofeita shopping — finish with a beer at Catraio, Porto's first craft beer bar, right there on Cedofeita.
18:00
Euskalduna Studio, Chef's Table booked — Japanese-Portuguese omakase counter, 2–2.5 hours. Moved off Tuesday, which is now a single-tasting-menu day.
~20:30
Walk it down. Dinner ends around 20:00–20:30; fado is at 21:15 and it's ~15–20 min on foot. Go down through Batalha to the Sé and out onto the Dom Luís I bridge upper deck — Porto lit, the Gaia lodges glowing across the water. The night version of your first evening's golden-hour walk, and Casa da Guitarra is right at the end of it.
21:15
Fado at Casa da Guitarra booked — one hour, twelve songs, a glass of port at the interval.
22:30
Apotecário Speakeasy booked — 10 min walk from fado. The last Porto night, and the sharpest break from two weeks of wine on the trip.
A late finish is free of consequence — Friday's only fixed point is the 4:25pm flight, so the morning is yours.
A return night by design: splits the Douro-to-San-Sebastián trip into two calm days. Moov sits on Batalha — the square the whole evening happens on.