What is holliday unit huntsville?

As an AI language model, I don't have access to current information but Holiday Unit in Huntsville, Texas, refers to a lodging facility that is part of the Texas Department of Criminal Justice. It is primarily used as a temporary accommodation for visitors of inmates at the nearby correctional facility. The unit includes a visitor center, housing units, and outdoor recreational facilities. It is operated by the TDCJ's Institutional Division and reservations can be made through their website.