I 'broke the rules' by taking this photo - of the large "Champagne Pool" in the Wai-O-Tapu Thermal Area - facing towards the Sun. Fortunately, however, this gave me a good result, as the light emphasized the steam coming off the pool.
https://en.wikipedia.org/wiki/Champagne_Pool
(May 19, 2020. Nikon D7200, 1/640s @ f/7.1, 10mm, ISO 100.)