Their family had enjoyed Geocaching (if this word is new to you, go to geocaching.com on the web, of course). They introduced us to this outdoor tech sport which took us exploring around White Rock Lake in the center of Dallas on a beautiful day. This got them their most southerly and westerly finds to add to their record.
Riding the DART train (Dallas Area Rapid Transit) was part of the adventure of downtown Dallas. With Grandpa on senior citizen fare, the train cost less than parking for the two cars we would have needed. We started at the John F. Kennedy sites and memorial but also saw some of the earlier history of Dallas and Rosa Parks Plaza. I think all agreed that the highlight was the visit to ThanksGiving Square. I had served for a few years on their Interfaith Council, which happened to meet that day, so our children and grandchildren got to meet some of these interesting people. Lying on the floor of the chapel to look at the stained glass spiral ceiling windows was a bigger hit.