Thank you for your feedback; the camera was troublesome and I didn't get enough time to play test it to really get the feel of it.
My friend was trying to code a climbing mechanic but we realized that it was much harder than anticipated. We did have ideas like repelling with rope and actually scale / climb down the inside of the mountain.
[Spoiler] I'll try to implement it better next time with leading the player. There was some signs of it but nothing really in your face. In the mountain cave there is mushrooms and crystals. You start in a room full of mushrooms and if you follow them it leads you to the end while the crystals lead you astray. I do understand that it is hard to see because they are both strongly lit cyan. But i'll try better with the actual modeled environment itself next time!
Thank you for your feed back; it is greatly appreciated from a different perspective! I hope you enjoyed playing :)