Today Rizzo climbed the tree outside the garage to go harass the cat. (Blu the cat spends an extraordinary amount of time harassing the dogs too, it’s totally a reciprocal relationship).
When I realized Rizzo was so much higher up than I could reach, I went over to call her down out of the tree. She carefully climbed down and seemed quite proud of herself.
I had a dog in high school and college, Mik, who would also climb trees. He would get a running start and speed towards the tree, then use his momentum to scramble up the trunk. If there was a low enough branch he would hook his front paws over it and shimmy on up. I felt quite nostalgic seeing Rizzo in a tree, it reminded me of Mik who I still miss.