Classic! This boulder holds one of the most classic V3s in GHSP; "Periscope".
Steep, tall, and beautiful. The Periscope Boulder never disappoints. Bring a couple pads and dont forget your camera.
There are a plethora of other contrivances and test-pieces to be had here if you are interested. I would rather keep the content listed to the most straight forward boulder problems. Ask around or make up your own!