Or any other hill. Use the wing to pull you up.
If you get airborne you lose, but it will still be fun.
Zig-Zagging up might be easier than straight up.
Success: climb 20 meters
Wing: Gradient | Golden 4 | 24m2
Wind: 20km/h | no turbulence | mild lift
Very good demonstration with added bonus of technical explanation.
Wing: Niviuk | Artik P | 21m2
Wind: 10km/h | mild turbulence | mild lift
Wind not completely laminar, as you can see from the windsock
Wing: | | m2
Wind: km/h | turbulence | lift