...Well there's the dong-rock and then nearby it is the odd mysterious ruins. In that same area there's large footprints and a ruined home, but nothing much to do there.
There is also a hidden cave burrowed into the side of a mountain covered in overgrowth in the North West part of the map. You can fall into the under part of the map, and travel outside the water, and loop to different parts of the map unintended for exploration via clipping and Skyrim style parkour.
I know the BBC-rock, iz kinda hard to miss, that one

. Had a good giggle when I first saw it. And did waste my time running all around the map anyway, and actually found some more potential POIs, though I'm not sure if these are common knowledge to folks who have played this longer than the -maybe- 10 hours I got now.
There's a bunch more caves around the map:
-One in the cliff bordering the map on the east side, right next to the bigger one of the two trees.
-Two by the little "pool area" at the waterfall in the south-west corner: 1st behind the waterfall and 2nd just around the corner, walking along on the ledge of the cliff leading east from the "pool area".
-And the bee-hive in the northern part of the map, couple steps north-west of the smallest one of three red trees. Looks like it could be home of mighty futa bee I seen in pictures

.
I suppose these will only serve as spawn points at certain times, or as "nests" where some of them furries go to sleep. Maybe more comes of that once nests get implemented fully. But all I seen so far in them places was either sleeping critters or fucking critters.