Start your morning with a gentle riverside walk along the Oita River Promenade, stopping at the charming Oita City Art Museum for a quick look at regional modern art and rotating exhibits. From there, wander through the nearby Funai Castle Park grounds to enjoy historic stone walls and early-morning light, then pop into a local café such as Cafe Heartland for a warming cup of coffee and a freshly baked pastry before heading to the cruise terminal area.
After a relaxed morning, head toward the waterfront to explore the lively Tokiwa Market, sampling fresh seafood snacks and local delicacies like kamaage udon from small stall vendors. Continue with a short stroll to B-Con Plaza to admire its modern architecture and catch a temporary exhibition or live performance, then unwind with panoramic harbor views from the nearby Oita Marine Plaza while enjoying a locally brewed tea or soft-serve made with Oita milk.
As twilight falls, wander toward the atmospheric Kawabata Shopping Arcade to browse local crafts and pick up specialty snacks, then settle into a riverside table at Kappo Izakaya Minato for small plates of grilled fish and seasonal vegetables paired with chilled sake. Finish the evening with a short, soothing soak at the traditional Hot Spring Foot Bath near Oita Port, watching harbor lights reflect on the water before returning to the cruise terminal.