Att Park in San Fran

caught a game out there last september for the saints/49ers game. sat first row of the upper deck, 3rd baseline-- seats were SICK. you're close enough to the field and get the panoramic view of the bay. it's a little section of like 5 rows called the view box or something. great PARK

Get a kayak and chill out in the harbor, waiting for a HR to go out of right field.

Not a bad seat in the house. I sat in the upper deck around the left field foul pole (basically as far as you can get from home plate at AT&T), but it was still a great seat with a view of the bay and the game. Not sure about the cost, but there are a few seats on the right field wall that basically hang over the field, so it feels like you are so close to the game, which I think would be an awesome experience. If you are looking to go for free, then you can watch from the fence in right fence (not a great view), and while this seems impractical and not a serious suggestion, it is just a cool way to maybe catch an inning of a game.

ETA: The weirdest thing about the park is that the grass is not cut in a discernable pattern.