This Far Cry 3 trophy/achievement asks you to find and collect 60 relics. Relics show up as white vases on your map and will appear as you explore and complete objectives. There are 120 relics in total, so this challenge only requires you to find half of them.
Pull up your map with the select/back button and then find a white vase. If you set your waypoint, it'll appear in your field of vision as you run around Far Cry 3's islands.