  Black holes in Lorentz violating gravity, such as Einstein--Aether or
Horava--Lifshitz Gravity, are drastically different from their general
relativistic siblings. Although they allow for superluminal motion in their
vicinity, they still exhibit an absolute causal boundary in the form of a
universal horizon. By working in the tunneling picture for a gravitating scalar
field, we show that universal horizons emit Hawking radiation in a manner akin
to standard results in General Relativity, with a temperature controlled by the
high-energy behavior of the dispersion relation of the gravitating field, and
in agreement with alternative derivations in the literature. Our results
substantiate the link between the universal horizon and thermodynamics in
Lorentz violating theories.
