Eyes And Ears
noun - Offering of navigational advice to swimmers in the water when they cannot see the course or their competition.
The coach on the escort boat served as the eyes and ears of the swimmer when the swells got too large.
[Origin: bef. 900; ME eie, ie, OE ége, var. of éage; c. G Auge; akin to L oculus, Gk ps, Skt akṣi ] + [Origin: bef. 900; ME ere, OE éare; c. ON eyra, G Ohr, Goth auso, L auris, Lith ausìs, Gk oûs]