The mural to the right of the cave entrance on Sulani
Did anyone finish it? What happens? I noticed it got expanded on as you completed an expedition into it. The painting/mural/whatever it is, actually grow and got more details.
Forum Discussion
I believe what @LaBlue0314 posted is as far as it gets - that is complete. And yeah - nothing happens. A lot of people, including me, thought it might be one of those secret lots - especially since there is that lighted cave looking entrance on the other side by the water where the mermaids hang out - but I and others have gone into the cave so many times and all you get is more rabbit hole options like seeing wildlife or natural wonders - they just start repeating and nothing else ever happens. Sometimes you get stuff, like kelp, and usually get a moodlet - some good, some bad.
