I don't know what cave you are talking about, but here is an example of a cave: DARK CAVE. I hope this helped!
you can't go to hoenn in Pokemon heartgold/soulsiver...
you are in the Pokemon legue then go out go in the cave and go to the left stairs in the cave then you find your way.
Outside the Chargestone Cave.
You Can Go Into This Cave Once You Have Beaten The Pokemon League. Cerulean Cave Is Where Chanseys And Mewto At LVL 70.
if you go into the altering cave after you have the e reader or trading pokemon you get random Pokemon that range in levels from 10s to 50s.
The black flute can be found in Dark Cave in Soulsiver.
The same place as gold heart. In the back of a secret cave your mom tells you about.
you can't go to hoenn in Pokemon heartgold/soulsiver...
you get it from an event
Pokemon soulsiver and Heartgold are $34.99.
If you got both Kyogre and Groudon, take them to Mr. Pokemon and he'll give you a Jade Orb. You'll, then, need to return to Embedded Tower.
yes you can in mt.silver
You have to enter the Hall of Fame.
just open the door ;)
Just south of goldenrod city
no but you can go to kanto
you are in the Pokemon legue then go out go in the cave and go to the left stairs in the cave then you find your way.