Right after coming out of Mount Moon (the first cave you encounter, not including the forest) you will arrive in Cerulean City. To reach the cave, you need a Pokemon that knows surf, you need to have beaten the elite four, and have at least 70 different kinds of Pokemon. Go up the Nugget Bridge and turn left. Go down the grass patch and use surf in the water until you reach the cave entrance. If there is someone in the way, you have not yet met the requirements.
There not in cerulean cave.
You can find the Cerulean Cave in the northwest corner of Cerulean City in Kanto in Pokemon LeafGreen. The cave contains the Pokemon Mewtwo.
in cerulean cave.
in cerulean cave
Cerulean Cave.
He is at the end of cerulean cave.
At the end of cerulean cave.
back of cerulean cave
Go to Cerulean Cave.
no but mewtwo is
Cerulean cave
you have to beat the elite four, and get the national dex. then go to cerulean city, go past the nugget bridge, and surf on the water. there is a cave,and its cerulean cave