Known as the The "Prisoners' Secret Flower Garden", Newkama Land is a hidden sub level of Freezing Hell, and is where all the prisoners who have been supposedly "demoned away" have gone to. The secret area is located inside a rock between Levels 5 and 6. It was carved out long ago by a prisoner with a tunneling Devil Fruit power, and is a secret location unknown by the jailers. It has been described by prisoners as a "paradise within hell", and true enough, not one inmate from this hidden level is inclined at all to escape the jail as a result. However, since the level itself is hidden, the inhabitants seem to abide by very strict rules that prohibit them from actively interacting with the other levels, at least not without covert movement. Still, they do not seem to discriminate should new arrivals find their way here.
One of its main rooms is a combination of a sit-down cafe and a discotheque, with the main attraction being a cabaret stage where prisoners perform. Apparently, there are also secret entrances existing from the other levels (save for Level 6) that leads directly into this hidden level which the inhabitants can use to their advantage in procuring any necessary supplies. The level also has a Surveillance Den Den Mushi that captures feeds from Impel Down's main surveillance system so the prisoners can see what is going on from all levels in the prison.