I can echo a lot of what is said. Oracle is my favorite park. Maybe covid has reduced the amount of good food options, but from my visits, I would say: Take a lot of money and try the crab sandwich, bacon-wrapped hot dog (drink water; that thing is a sodium bomb, but so good), and get a Ghirardelli sundae. That park is in a great location. Go early and enjoy the park when it is empty. I agree with those who say prepare for the weather to be cold. Oakland? It's a tired, worn-out dump. Go there to cross it off of your list. I went to a playoff game a few years ago. Got a cheap ticket, walked around. Not impressive. My niece works across the street, and her company allowed me to park in their parking lot. Got back to my car after the game and had a City of Oakland parking ticket. The company said they had no idea how it happened. It was on their property.