Depart after sunrise for Portland via I-5, allowing a realistic full day on the road plus meal, fuel, and rest breaks; the exact duration depends on your starting point, so keep the afternoon flexible rather than booking anything timed too tightly. Before leaving, confirm your hotel’s parking arrangement—downtown and Pearl District garages commonly run about $20–45 per night—and save the address offline. On arrival, check in, leave the car parked, and use TriMet or a short rideshare rather than driving between the day’s stops.
Start at the Portland Japanese Garden in Washington Park, allowing about 1½ hours to slow down after the drive. It is typically open from late morning into the afternoon, with adult admission generally around $22–25; check the official schedule before setting out, since hours and timed-entry policies can change. From there, walk roughly 10 minutes uphill to the International Rose Test Garden, usually open free of charge during daylight. The terraces are especially lovely in August, and the upper paths offer broad views toward downtown and, on a clear day, Mount Hood. Wear comfortable shoes—Washington Park is hilly—and allow extra time for the free park shuttle if you prefer not to walk between garden areas.
Head downhill to Powell’s City of Books in the Pearl District, about 15–20 minutes by rideshare or TriMet from Washington Park, and give yourself an hour to browse its color-coded rooms and packed local-interest shelves. It generally stays open into the evening, making it a good unhurried stop after the gardens. Finish nearby at Deschutes Brewery Portland Public House for a casual dinner and local beer; budget approximately $25–45 per person before tip. The Pearl District is easy to explore on foot, so leave the car at the hotel and stroll between Powell’s and the brewery, checking current kitchen hours if you arrive late.