So I found a path through the rocks at the Southern Spire in Tol Barad and found quite the huge mountain. I'm getting stuck though, because there's an invisible wall blocking the path. If anyone has an idea to get past this please do share, because I'd love to explore the mountain and I assume others would as well.
I have tried rocket boots, disconnecting and jumping from different spots. There's also a death line, but it's above the sea level.