When it comes to Skyshards in Delves and Public Dungeons, you can just rush through them for the most part if your skills aren't up to snuff yet, or you can stick with other players to help you ...

In total, there are 18 Skyshards in High Isle, all of which are evenly spread around the map. Most of them are found on the main island but there is a handful also located on the secondary island ...