Beer At The San Diego Zoo

It's been maybe two years or more since I last visited the San Diego Zoo.  I went yesterday and was impressed with the availability of craft beer.  I knew the upscale restaurant Albert's served good beer, but I noticed several kiosks and small eateries around the zoo that offer craft beer, and you're even allowed to walk around the zoo with beer.  I am guessing this is relatively new, because I don't remember beer stands from my previous zoo excursions.  I saw local craft brewers Karl Strauss, Stone Brewing and Ballast Point represented (and a few non-local big boys).  It's great having hometown brewers prominently selling their beer at one of San Diego's largest tourist attractions.