More: Darby is a playful “puppyish” 4 year old. She is super excited to meet other dogs on the trail but seems even more happy to meet the humans. Darby is truly a gentle giant. She is happiest out walking in the woods but will take forever to walk 10 feet on a trail because she needs to sniff every leaf and branch from top to bottom and front to back. She happily comes running to us with a little sideways prance when she realizes we have walked much further down the trail than she has.