Pros:
The Green Oaks disc golf course is probably more aptly described as a 'practice-area'. The 6 baskets that make up the course are scattered through a small park bordered by a little creek and filled with beautiful swaying (oak?) trees. The park area is nicely manicured grass and all underbrush has been beaten back to the very edges of the playing area. The 'tees' for the course consist of numbers of different colors which have been spray painted on trees. The layout is nothing special and you could probably develop an equally good way to work your way to different baskets by simply making up new tees on the spot.
All that said, this is a very fun place to throw some safari golf - most to all of the holes you could create will be tightly wooded and there aren't any brush or thorns around to ruin the fun.
Cons:
Tees - I kind of alluded to this point earlier, but there isn't really a need for 'tees' here and the spray paint that someone has put on the trees ruins a lot of the beauty of the park. Spray paint is relatively permanent and is an eyesore - I'd recommend sunken bricks as a temporary solution to marking tees. Sure navigation will be more difficult, but likely no one traveling here is looking to play some sort of 'official' layout.
Other Thoughts:
This course made for a pleasant stop on our way to Whistlers' Bend and would be a pretty fun place for locals to practice upshots and putting in an empty, peaceful park.