  We investigate the properties of water along the liquid/vapor coexistence
line in the supercooled regime down to the no-man's land. Extensive molecular
dynamics simulations of the TIP4P/2005 liquid/vapor interface in the range 198
-- 348 K allow us to locate the second surface tension inflection point with
high accuracy at 283$\pm$5 K, close to the temperature of maximum density
(TMD). This temperature also coincides with the appearance of a density anomaly
at the interface known as the apophysis. We relate the emergence of the
apophysis to the observation of HDL water adsorption in the proximity of the
liquid/vapor interface.
