As you all know by now, Derek is not too strong right now, so walking is a chore, rather than a pleasure. We have a wheelchair in our family, which has had some use in the past. I picked it up from our downtown storage this afternoon to make it possible for Derek to be rolled to places other than the immediate surroundings of the house, where he then can go walking. The Metrotown Mall is not far away (and it's a big mall), with many interesting shops and many people, where he can have a meal or coffee. We also have a nice park in our neighbourhood. Additionally, the wheel chair is light enough to put into the car, and be taken to areas farther away. Vancouver is a beautiful city; there are many interesting spots.
I'm sure that all this will lift Derek's spirits. He already sounds much happier.