This searchable and zoomable map is the best way to find everything there is on the massive GTA V island: http://au.ign.com/maps/gta-5/los-santos-blaine-county?utm_campaign=fbposts&utm_source=facebook. This is zoomable using the mouse wheel exactly like using Google maps. So if you want to find every pickup and secret in this map; this is where you go to get them. Sites such as Trevor`s helipad and the spaceship parts are clearly labelled with icons, just click the icons to get information about it. There are also stunt jumps in the game that you can do with the in-game vehicles. Everything that has been found so far may be added to the map to create an awesome online map of the island.