Yerba Buena Gardens is a next travel destination for my sister while last minute vacation deals from san francisco and quite happy for this. She is willing to enjoy there exciting fun options like Collection of plants, flowers, nature views, sightseeing, walking, photography and birdwatching at this 0place. What do you say will it be a good option for her or not?

I would say that your sister's plan is really great and cool to have fun at Yerba Buena Gardens. It is a most exciting place for fun and tourists can enjoy there some time with buddies. I also visited there for having enjoyment. I want to share here some most impressive images of this fabulous garden which I have captured in my  camera during my journey like:
 

Yerba Buena Gardens looks something really great, It would be really a great thing to me I am sure to enjoy some of the brilliant kind of the stuff at anywhere like this,  I am sure that get to enjoy something like this one would be quite cool and full of fun.

It is good, a nice conversation is going here about the Yerba Buena Gardens which I really like. Especially I like the shared views of this garden which are fabulous and show its beauty as well. I want to know which kind of activities travelers can enjoy except photography there.