Slots is the poster boy of the Âfunnel riverÂ. There are about 5 distinct Class V drops flowing headlong into the next, with each one bigger than the last, culminating in a completely boxed in 15 footer. The 15 footer is super bony, not reccommended to run it below 3.0. This rapid is extremely difficult to portage. It can be portaged in its entirety on river right, however I refer to this as the "pure misery" portage. The only other option is to portage halfway down on the left, do a death ferry, and finish on the right. With the exception of the death ferry, this is a much easier portage!