Confused

I just unlocked something and I’m trying to figure out more info about it but I can’t find anything??

So I just became friends with Apples (love) and I made the waypoint from my Enchanted Grove. However, it then brought me to a cut scene and then I was at a hidden lake? With multiple waterfalls and ancient fruit everywhere!

Could someone just tell me what this place is called so I can look it up? Haha I want to see if this is a new resource or just a little help :)