I've had my little Moroccan spur-thighed tortoise for over 3 years now and she loves being outside or inside equally much. she never digs to go outside, though sometimes asks to come in if it's too hot. She seems to love the open air, but I soak her inside, just showers outside, both of which she enjoys. but I can't speak for sulcatas. welcome to the site, the people here are great, as you've already discovered.