There is a small herd of mule deer wintering at McArthur Island Park. They spend most of their time on the nine-hole golf course, which is, of course, closed for the winter. They are wild deer but because of their location, they have become quite tolerant of people. As a result, it's possible to get quite close, perhaps 50 metres or so, before they get nervous.
It takes time — and patience — to get really close.
It's doable, but the key is to move like you could care a less they are there, and do it very slowly. This doe was bedded down in the trees, and I was able to get with 10 metres over the course of 30 minutes or so, by taking a sideways half step every few minutes. She watched closely but never got up.
I would have been game to keep trying to get closer and closer, but for the fact that feet freeze solidly when you are not moving much. When I couldn't take the pain any longer, I moved one to get some blood flowing to the digits again.