Coordinates: [712469; 3416008]
Note: In the north-western part of the beach, near the spot where you begin the exploration of Shipwreck Beach. Locate a small water pool with two buoys floating on the surface, drop down and shoot a rope arrow to pull one of them towards you. Position the buoy right underneath the interactive wall.
Scramble up the rocks and leap over the buoy. Leap again, this time in the assistance of the climbing axe, to grab onto the interactive wall.
Finally, make your way to the top ledge. Approach and examine the Cairn (reward: 5 XP).
Coordinates: [712471; 3415995]
Note: In the north-western part of the beach, near the survivors' camp. Make your way for a small hill and examine the Cairn (reward: 5 XP).
Coordinates: [712483; 3415992]
Note: In the north-western part of the beach. Examine the path between the starting point and the first base camp and you'll find rocks to the east, together with a narrow pathway.
Go up the path, climbing when needed.
When you get to the top, approach and examine the Cairn (reward: 5 XP).
Coordinates: [712503; 3415950]
Note: In the south-eastern part of the beach, along the path behind the lighthouse (reward: 5 XP).
Coordinates: [712522; 3415950]
Note: On a high shelf in the south-eastern area of Shipwreck Beach. The first time you get there is by sliding down the zip-line from the lighthouse. Take the sideway path along the cliffside.
You should find the Cairn in no time (reward: 150 XP).