Do as the locals do walking tour. Lunch at Quinta. Vineyard hike and tasting. Castelo Rodrigo, Guimares city tour. I skipped Salamarca it was 4 hours on bus. These were good picks but bear in mind it will be 100 degrees when you go. I didn't hear any negatives. Tested upon arrival and day before departure. The arrival was free departure I think was 60.00. I could be wrong on that. I had no bill leaving the ship but I had a 100.00 credit. You can test everywhere
I booked a night at hotel for first night and went from there, you can board the ship early but rooms are no ready. Country club casual for dinner. I only took a carry on and a medium backpack. There is a little self serve laundry on the ship, very handy. I don't remember anything good on the dockside. Hang out on the Riberia side of the river than cab over to your ship. How do you intend to wander with suitcase? You could but Porto is like San Fran with the hills. You'll be 40 pounds lighter by days end. Any other questions, fire away..ps no sundries for sale on board, so don't look for aspirin or pepto or any "emergency items". The shower is going to make you crazy, you'll understand when you get there. I look forward to your "review"!!