  We propose hexagonal ice (H$_2$O) as a new target for light dark matter (DM)
direct detection. Ice, a polar material, is suitable for single phonon
detection through DM scattering for which we consider light dark photon and
light scalar mediator models. We report a rate sensitivity down to a DM mass of
$\sim$keV, constituting a broader mass range than other promising candidates.
We find better sensitivity for near-term experimental thresholds from the
presence of high-frequency phonons. These advantages, and ice's availability,
make it highly promising for single-phonon detection.
