Last Wave is a Rock
After Puma comes Last Wave is a Rock. This rapid contains some of the best catch on-the-fly surf waves on the Futaleufu. These waves are "special waves" that get even more special as you proceed down the wavetrain. With each passing wave the surfing gets better and better. The last wave is the most special of all – consisting of a large rock which develops into a violent boat eating pour-over at medium to high flows. This rapid is a reminder that good things don’t last forever and why bad things happen to good people - who forget where they are.
High and Low Water
The waves of this rapid are created by a "damming effect" due to the rock that sits in the middle of the channel. At low flows this damming effect is lost and the waves tend to flatten out and lose speed. At low flows the rock is also more exposed making it easy to avoid. At high flows this rapid will wash-out.
Boat scout from just left of center above the rapid. A scout from shore can be accomplished from river-left but it is very difficult proposition. If you run this rapid the one thing you need to know is that: "the last wave is a rock".
The only real hazard in the rapid is the "Last Wave". However, errant kayakers usually come through the wavetrain with so much speed they blow through the pour-over. For the unlucky few that get caught the hole can be violent and retentive. Take note that you can also skirt the hole on river-left if there is not too much reactionary current coming off the wall.
Try and catch and surf all the waves in the wavetrain, especially the one just in front of the rock. When you have had your fill, eddy out on river-right.
Where to Swim
Swim toward the river-right eddy.
Where to Rescue
Rescue kayakers should be positioned in the river-right eddy across from the "Last Wave".
Where to Portage
Running the Rapid
Running this rapid is a test of will power, and counting ability. There are about seven big waves on this rapid before the Last Wave. Seven is a best-guess-estimate from over twenty years experience of running this rapid. Sometimes there are more than seven waves, and sometimes less than seven. A general rule of thumb is that if you reach a wave count of seven your great day of paddling is about to become a really memorable one. Don’t forget to wave to your non-mathematically challenged friends, who will be watching you from the eddy on river-right.