Spokane parks officials don't want you to know this, but here's a tip all sledding thrill seekers should know: The best hill in the city is probably at Underhill Park, just off Interstate 90 in the East Central Neighborhood. North Side sledders, who last year lost access to the legendary embankment at Downriver Golf Course, might want to make the trek across town to sled at Underhill. The three-layered hill is plenty steep, and it has a long flat run at the bottom for safely sliding to a stop. It is easily a better sledding hill than Downriver.