SC14 UNDERTOW

     North of the Water Ski Park, in Open Ocean: West.  This Side Challenge
     borrows from both JAWS 2, and JAWS 3-D, by having you attack water skiers,
     but you have to attack them as they are jumping off of the ramps.  You
     will fail this challenge if you attack the boat, attack the skier before
     they jump, or if you don't attack the skier before they land.  There are
     three ramps that are used in this challenge.  The skiers travel from
     South to North (right to left) at the farthest ramp, North to South
     (left to right) at the middle ramp, and North to South (left to right)
     at the closest ramp.  I've listed the order of the ramps you should
     attack in order to succeed at this challenge.

     Level 1:  Kill 1 skier.  +.3% to completion score. (Far ramp)
     Level 2:  Kill 2 skiers. +.4% to completion score. (Middle, then Far)
     Level 3:  Kill 3 skiers. +.3% to completion score. (Middle, Far, Closest)