Coral Cove is on the small, westernmost island in grid square A2, while the crash site is on another small island directly east of it, in grid square C2. Stack Shack is a little further away ...

It's located at C4 on the map grid. The final landmark is Coral Cove, which is located in the northwest part of the island, just past Sweaty Sands. You'll find it at the end of the beach ...