LEVEL 40+ si

 The Frosty Palace 

Creator: Unknown

Directions: Go to Frosty Isle, north to the path, north edge

 South Isle Landnig East Cave  

Creator: Unknown

Directions: go to South Isle landing east

 South Isle Landnig East Cave  

Creator: Unknown

Directions: Go west to South Isle foothills, entrance is there

 South Isle Landnig East Cave   

Creator: Unknown

Directions: Go to South Isle Landing east to eastern north edge

 Forgotten Temple 

Creator: Happy

Directions: North To SI Foothills, Northwest Corner

 Drow 

Creator: Unknown

Directions: Go west to South Isle foothills, cave is there, past the dwarves you get to the drow.

Note: Tunnels are 100+, and deeper 200+

 Cavron Cove 

Creator: Unknown

Directions: Go west to South Isle foothills to Southwest corner