The Tomb of Yvenia is one of the tombs that is located near Fort Tarsis. It is well hidden, so below you will find out its location and conditions for passing.
Location of the tomb of Yvenia
Go to the place marked on the map in red. There, find a stream of water going into a cave next to the wall of Fort Tarsis. Walk along it and you will soon find yourself at the gate of the Tomb (marked in green). To open them, you need to complete the Trials of Evenia.
How to complete all challenges
Treasure chests - find and open 15 different treasure cheststhat are scattered all over the map.
Harvest - Destroy 25 Mineral Nodes (looks like colored stones) and Plantation Nodes (looks like plants).
Jewel repair - explore the world in free play mode and look for battles with the Guardians. All you have to do is help them in battle and then fix them (3 in total).
Collectibles - Find 10 different collectibles - for example, new places, scraps, documents in the camps and more.