@ALDABRAMAN your pastures don't seem to have much shade. Do your tortoises retreat to their house every day during peak sun intensity?
I have always kept our young aldabras in a pen without shade and their next expanded pen will be the same. As soon as they get too warm they just go in the night box and hang out until it cools off. I have a theory that by not providing a bunch of additional shelter throughout the pen they are more likely to return to the heated night box every evening.
I'm guessing this is looking out from your garage on the new property on the water inlet? Finally getting there. I lost this thread some how so have seen whatever updates you may have done. Looks like a great place. Glad you're getting it done.