Kid Power Tower is a drop ride in Fun Town at Legoland California. While it's not the best, it is also recommended. The minimum height to ride is 40 inches.
A very friendly "free fall" ride. Discover the magic of pulleys as you pull yourself up to the top, then "fall" to the bottom, as gently as you wish to go. Terrific views of the park - even out to the ocean on a good day.