I need advice on housing box turtles. This is my situation. I have two baby desert torts that I keep in the house. My brother wants me to care for his box turtle for an unknown amount of time. He ( my Bro) is between homes. He has kept then in an indoor encloser for about 8 years (not a very attractive one)as he has never had a yard. I have a large yard. I also live in a pretty warm climate (Ramona, Ca) north east San Diego county. Should I keep them inside or build them an outdoor home? If I build them an outdoor home do I need to provide heating or will they just go underground when it get cold. I have looked at several websites on box turtle and have not found an answer to my question. I know that they need cool miost areas, but I am stumped about heat.