Dino Face

So there are a number of options to go up but I feel most will be similar in difficulty. That said you could definitely make it harder by using only terrible sloppy or tiny crimpy holds.

This particular route is the farthest east part of the park on the very obvious brick building with a t-rex or some other angry looking dinosaur skeleton.

Pad if you can sneak it in or toss it over the fence earlier. I think the concierge would be suspicious.