Mysterious cave and marble statue in Lumber Tycoon 2

I decided to play LT2 and spotted some weird marble legs on one of the fields where you can spawn your base. I went to check it out and spotted a cave I've never seen before even though I play the game since 2016.
Has anyone ever seen this before?

[@nktfamous]

Golqm sum ti fen Radko !!!

[@cocojambo-slowedreverb9835]

UPDATE (March 15th): The cave entrance has been closed, you can't enter the cave anymore even if you try to blow up the wall with a dynamite. The marble legs have also disappeared.

[@gamefreeibn]

What happens

[@Felix.Bartlett.58]

same thing i think its to do with the hunt
add me and we can try find more stuff my user is kartmaster58

[@cocojambo-slowedreverb9835]

added

[@flamboyantkittrip1642]

i saw this too just now so im looking this up

[@Felix.Bartlett.58]

@@cocojambo-slowedreverb9835accepted