what rsvp says. I have got two whitei. One has been mine for about 50 years, they other one I took on from someone who couldn’t keep her. They are a full time 365 day responsibility. When the are hibernating, the temps need monitoring at least three times a day. I don’t fridge hibernate mine because twice in my life I have seen larder fridges go crazy over night and turn into freezers. People will tell you it can’t happen, well it can and I haven’t got the bottle to take the risk. Many people do though and all goes fine. All the time with torts you need a plan B, indoor shelter heat and light when the summer is poor, the means to keep hibernating temps stable, suitable food when they are awake and nothing is growing. Mine are in a large run, the run is 20 by 30 feet ish, double gated to keep my dogs out and doubly secured around the edges because tortoises can both dig and climb. Yes they will escape if they can and won’t stand a meeting with a dog or fox or cat. Additionally many if not all of them carry salmonella so human hygiene precautions are essential. Males kept together will fight and males kept with females will continually attempt to mate which can make the females very ill unless multiple females are kept with one male in a large enclosure. Tortoises can’t be sexed at hatching.
I like my tortoises and am willing to take on the trouble and can afford the costs but they are not a pet I would recommend.