I put my new death bowl which is a rectangle instead of a bowl on my balcony. But it doesn't get too hot cause there is a roof on the balcony
They are able to bask though
They problem here is that the entire little enclosure is in the sun. This could over heat it, or them. They need an area to bask and get warm, indoors or out, and they need an area to get away from the heat indoors or out.