San Francisco's AT&T Ballarpk is situated at  24 Willie Mays Plaza San Fracisco, CA. 

There are a number of ways to get there, but the best way would have to by by commuter train.  Why?  Because it's cheaper.  Parking is atrocious and trying to get in and out is a hassle.  Much better to just take Bart and switch to the M-train or any other Muni trains that lead to AT&T Park. 

Now what's there to do there?  Well during baseball season ... there's baseball. 

Aside from that there are smaller events like a county fair, emerald bowl, and even concerts. 

Within the ballpark they have family attractions such as the Coca Cola Fan Lot where fans are able to run around the bases. They also have a superslide shaped in a coca cola bottle. 

There's a little park for small children to have fun and experience softball thrown by either a pitcher or a pitching machine.

For those a little older, there's a speed pitch where you can test your arm.  But it costs money.  $2 for four pitches, $5 for accuracy.

Inside the park there's a Build-a-Bear Workshop.  They feature Lou Seal, but if you're not interested in that, they have other options for you, or you can just stop by and check out the products.  It's always interesting to visit and see what they have there.


Now what else?  Oh yes, the food.

I have to say that if you are visiting the ballpark, you should bring a lot of money and a credit card.  What would be better is if you bring outside food. It's really overpriced.

If you are going to eat there, then here are my suggestions:

• Avoid the beer - they're priced at $5.75 for a 12-4oz (really tiny) and $9 for a 16/20oz.  
• Avoid the water unless it can't be helped, they're priced at about $4.75 for a Dasani.
• Nachos sold at the Doggie Diners are pretty small and overpriced that comes with regular corn chips and standard nacho cheese (with jalapenos if you want to get them).  Slightly bigger ones come with slightly more corn chips but same sized nacho cheese and the addition is the salsa.  It's not even the fresh kind either, they come from bottled ones . So I'd avoid that or try to see if the the Compadres (a better vendor for Mexican food) is still there. But last time I checked, people were telling me that they left and aren't going to come by anymore.  
• Pretzels are so-so, but they only come as "salt or no salt" with no other alternatives.  Cheese with it come with nacho cheese and charge you $1 extra for a small cup.  They're priced at about $4-5.
• Candy is now available at the ballpark but the prices are around $4-5 for big box, but the inside is a rip-off.  You're better off with larger movie theater, at least it reflects the amount...
• If you are getting a drink, beware that the place does not provide a cover and straw (they have never provided such a service).  So make sure you can carry the drink around without spilling it, or you'll regret it.  Nice ones I would suggest getting are the souvenir sizes - it's large and are priced around $6 but they're like 32oz or more.  Once you're done drinking it, you should try getting it signed by a player or something.
• Food I suggest to get?  Garlic fries or dogs from the portable stands.  Dogs from the portable stands sell mostly sheboygan dogs or some such - they come longer and more seasoned than the ones sold within stands such as Doggie Diners or Say Hey! 
• Popcorn is iffy, and they do not provide kettle corn, just butter and salt.  With no option of more butter and salt. 
• There are burgers and pizza sold.  The pizza is okay, and comes in a personal pan so it's good for sharing if you can't finish it off.  Burgers are sold at the Pizza Port I believe and they have a vegetarian option for them.  
• Another thing to note there are condiment stands situated a few feet away from the food stands, so you can put your own condiments on them.  I noticed that a lot of people would either automatically say what they want on their hot dogs/burgers... 

Anyways, I'll stop here.