Venator Wreckage, an optional location in Star Wars Jedi Fallen Order, is on Zeffo. This is one of the largest areas in the game. The location has multiple levels and it hides 4 chests and 3 secrets.
The descriptions of all the secrets and chests on this planet can be found in our guide:
To reach the Venator Wreckage, you must first get to Crash Site. You will visit this place during the story missions.
You will find a large destroyed starship. Run to it and jump to a higher shelf. When you get into the hole, you will enter the Venator Wreckage.
The best moment to visit this location is after you have completed the story - Cal will have access to all Force abilities and gadgets. Thanks to them, you will be able to reach every place and discover all the secrets.
Visiting Alderaan Places trophy is associated with this location. To get it, you need to explore this location in 100% and get all the collectibles.