you need seven badges to enter the cave. to do it, go to sootopolis city and talk to steven who will then lead you to the cave
First you need to get all 8 badges and past through to the cave that close to it.
you need to defeat the elite four before you can enter the cave
You have to obtain all 16 badges, and then you can enter the building that leads to victory road to take a left to go into Silver Cave, a.k.a. Mt. Silver.
the cave is right off of a golden bridge (i forgot where) But if you've seen one thats good go there and go to someplace where you can surf to the left of the bridge and the cave is right there but you have to have all 8 gym badges to enter the cave.
its in cerulean cave but you have to get all kanto badges first
In Cerealean cave after you get all the kanto gym badges
Go to Cerulean Cave after you have 16 badges.
The cave of Origins must rest in peace. (there's no way in)
the cave of origins you need to battle 1000 Pokemon and10 Pokemon trainers
you need all the 16 gym badges and then go through the cave
The Silver Cave is located in Mt. Silver in which you can go after you get all the Johto and Kanto badges. In the Silver Cave you can find lots of strong Pokemon and fight the final boss, Red at the top of the cave.
Seafoam Islands but you have to have all 16 gym badges You have go to the cave before blaine's gym an you don't have to have all 16 badges because i did it 14 badges.