No two days are ever the same when you are a correctional healthcare nurse. I worked there per-diem and really enjoyed interacting with the inmates, my co-workers and the corrections officers. There was an abundance of opportunities to learn new skills, everything from doing medication passes to assisting the MD with minor procedures. Since it's an enclosed community, you will experience every kind of nursing possible at one time or another. Chronic illness, acute care, urgent care, psych, routine physicals, etc.
The facility isn't really nice because it's a jail and it was built in the 1950s and not really updated at all. You need to be able to handle being locked into a building. If there is a natural disaster, such as a hurricane or blizzard, you are mandated to stay at work until your relief arrives. This can be exhausting after already working a 12 hour shift.