Yesterday, while down at the beach relaxing watching the waves, I began to notice shapes or images within the foam on the water. I immediately recognised this as skrying, which normally I do via fire, and many years before through the clouds.
The rapid changing foam though posed a problem trying to process or understand the shape. This maybe a form I will come back to, and to be honest you can really skry with anything, the idea being that you enter a meditative state, establish a soft focus to the somewhere past the medium you are using and let the mind wander. The subconscious and/or external forces will then present images interpreted or associated through partial recognition.
So any medium, preferably one that can respond or adjust slightly due to the environment in a random way makes for the best imagery.
In this case, the rapidly changing waves means there is an element of urgency that does not lend well to the relaxed state required, but I will have another go when the waves are not so large.