The cabinet could be 20 feet tall and they'd still figure out how to get up there.
My parents have 4 cats and these ones are a lot different than all of the other cats we've had over the decades. My parents have a wall mounted cabinet where the bottom portion is about 5 feet off the ground and the top of it is about 8 feet off the ground. There's about 6-9" between the top and the ceiling, and various decorations up there.. The kitchen table is about a foot in front of it, at normal height, about 3-4 feet from the ground.
One day I noticed one of the cats was on top of the cabinet! That's a good 6 foot jump at a steep angle (100°, 110°? I suck at Trig) and she didn't move a single decoration!