Tail section crash site

• Located at the west coast of the island
• The beach is facing ~270-300 degree
• The exact position can be seen in S03E01 (see screenshot)

Beechcraft/Pearl station

• Charlie and Sayid passed the beechcraft when they were after Danielle to get Aaron back (S01E24)

Cockpit/Front section crash site

• On the search for the cockpit/front section of the plane, Kate, Jack and Charlie are hiking inland up the valley (S01E01)
  
• They are passing the area later used as the golf course (see screenshot)
  

Fuselage crash site and the first beach camp

• The fuselage crash site is the first location of the survivor's beach camp
  
• It's located near a mountain/crater in the south
• The beach is facing west (see screenshot)