“…The sea here is both planar -horizontal, "shifting" laterally -but likewise, it is vertical: moving upwards and downwards, rising and subsiding with height and depth. In the sea, multiple mobilities engage each other in "reciprocity" (Adey, 2010: 3), opening attention to unrecognised volumes of hydro-space (see Elden, 2013a); a mosaic of vertical, horizontal, and angular shapes that provisionally coalesce into a spherical voluminous realm of matter (Sloterdijk, 2011). Surfers express their involvement with the place of the surfed wave in terms of being "at one" with the amalgam of sea and swell, of "merging" with this "medium," of being "intimately connected" to it.…”