I’ve never seen a cloister like this. Like in Silvacane the refectory is above church level and atop the chapter house.
Not only do stairs lead down to the cloister though. Through the refectory you can also get out and on top of the cloister.
Of course the ultra-wide at 7 mm makes the cloister look bigger than it is. At 14 mm the third image, while still wide, gives a more accurate impression.
In hindsight, of the “Three Sisters”, l’Abbaye du Thoronet is the most impressive, and even more so because of this unusual view.