On 66 acres of land on White Rock lake lies the Dallas Arboretum and Botanical Gardens. It opened to the public in 1984, so the gardens are relatively new, but they are vast and beautiful! I have been to the Arboretum 3 times in my four weeks in Dallas and became a member for the year. I can't wait to go visit in different seasons to see all the different types of blooms. It is so beautiful!