We had heard that Austin had a botanical garden in Zilker park. We were surprised by the size and complexity of the gardens. We visited the tea garden which is planted into the side a hill and flows down the hill following a stream that starts behind the gift shop just off the parking lot. There were several places to stop and enjoy the sounds of the water or the koi pond. One fun spot feels like a secret garden under the water fall. Because the day we visited it was 103 degrees we were able to enjoy this shady garden although we didn't go through the other gardens as they are planted with sun loving plants. We plan to return to enjoy the other gardens on a cooler day.