when i can figure out to record off my playstation ill post some video links. but there is some pretty sweet cliff jumps into lakes or alongside water falls. the tallest one ive found had to of been at least 50-100 foot jump.
1000 foot near darkwater crossing, verry top of that fall, near a bandit tower, just besside a big lake
estimate based on player = 6 feet
not a single jump thought, because the fall is in many steps
more like jump-rock-climbing-down except for the last 300 feet wich is one step
anyway, best view all over skyrim