Are you talking about the tomb on the beach? This tomb cannot be opened temporarily. If you follow the story, a person will give you a more impressive arc. Then, when you save another person, you will encounter a small BOSS on the ship. If you defeat him, a small machine will fall. Its function is to suck the rope, which can generate strong pulling force. open the door again, it can be opened. This little machine can also allow you to quickly slide up and down the rope.
Why can't the door to the sixth side tomb in Tomb Raider 9 be opened?
Introduction Why can't the door to the sixth side tomb in Tomb Raider 9 be opened? Are you talking about the tomb on the beach? This tomb cannot be opened temporarily. If you go down into the plot, a person will give you a message.