We'll help you find Crystal Wyvern Eggs in Ark Crystal Isles as they are a little different from the ones featured ... The third egg is at the beginning of the Trench at 74.3 Latitude and 43.5 ...

The second spot is at Blood Wyvern Trench area at 57.0 Latitude and 35.6 Longitude. This large base location covers tons of resources, including obsidian, crystal, metal, stone, wood, and thatch.