Where to find the cerculean cave Pokemon soul silver?

Answer 1

Quite obviously, you need to fly-walk to cerulean city. then you need to walk up the golden bridge thingy mabob, turn left, go down, use a repel if you want to, and surf downwards until you come to some land with a cave entrance. here is cerulean cave:) hope this helped:)

P.S, you can find mewtwo in cerulean cave at level 70 i think he is anyway, (dunno if u knew that mewtwo was in here or not, just saying) but you want either 50 or more ultra balls with him weakend and poisoned-put to sleep-burned, or just a Master ball (You will need A-R or another game to trade with so you can give a pokemon holding a master ball to your other trainer)