Heroes of Ashan: Antares

Okay, the map is good. So, listen, I have another question: where is the key to the Dungeon? I've searched everywhere. Besides, forget about the key: I probably found it; but where are the Dungeons themselves? I only have the mountain range and the lake in the corner of the map unexplored in the magic lands. But, as I understand it, you can't get to the lake without boots - the same goes for the mountain range. Could you write me in a private message where these caves are, if it's such a secret; if it's not too much trouble.

Added 1 minute ago
Oh, never mind, the question is resolved - I found the passage!!!!!