The Dallas Arboretum is a beautiful park on White Rock Lake. There are many gardens and two mansions that you can tour. During the summer, the gardens host many concerts and other special events. There is a special "frontier town" for the kids as well some fun frog fountains they can play in. This place gets really busy on certain weekends so go during the week if you can. If you like the Arboretum, get a membership ($65) which gives you free parking and admission for two. This will pay for itself if you go more than 5 times a year. They are open year-round.
more