That is really great Zohe. I love the sulphur springs also but it's even nicer when you get to bathe in the sulphur pools or the waterfall. It can be allot of fun especially if you are there with a few friends and family.
The pool is a bit hot during the day or early in the night but there are still people who bathe in them at that time.
When ever I feel like bathing in the sulphur spring, I would go really early in the morning before the sun is up. That way, I can really enjoy the warm water and not feel like it is to hot.