I consider kappa a kind of 'cataract' -- that is, a waterfall that bounces off some outcrop (kappa) on its way farther down the cliff to phi. Kappa, phi, and chi are all in the same field of vision: binoculars.

Once the river reach phi I imagine it to form a vast lake, on the other side of which is chi, on the western edge.

Now, just below chi -- about seven degrees -- is the brightest star of the constellation, the unmistakeable Achernar, and so to the mouth of the river: binoculars. Our voyage is over.

If you wish some help to remember the many stops along the way, this memory aid may help.