So I did it, there you go, a map for Otts Cave. Hopefully you can find your way out there.
Remember wherever you go, this applies to other dungeons too, make sure you walk out of the exit near the boss at least once. The first time I went to Otts Cave, I was being "smart" and decided to walk all the way back to the entrance so I could farm more ingredients. What I didn't know was that it was the key to unlock Silkreef by walking out of the exit in Otts Cave.
Please click the image to see the map in its original size.
Good luck and have fun!
- Enna is not a bear