First of all you can't catch chinchou in leafgreen second of all you can't use the HM dive because its not a HM in the game so you need to trade one from ruby or sapphire or emerald.
If you use dive in dark patches of water then go in the seaweed then you can catch chinchou.
Dive is not a hidden move in leafgreen.
Dive is not an HM in leafgreen you can't get it unless you trade a Pokemon that knows Dive from ruby or sapphire or emerald but it will not work in leafgreen unless your in battle.
First You Use Dive Then Go Neer Coral Or Somthing ... Then you can catch relicanith and you can catch clamperl Chinchou etc... And its for GAMEBOY Advance
you cant.
You cannot get HM Dive in Pokémon LeafGreen.Since Dive is not an HM in leafgreen the only way to get one of your Pokemon to learn Dive is to trade it to ruby, sapphire or emerald then teach it Dive using the HM then trade it back to leafgreen.
Dive is not an HM in leafgreen however some Pokemon can learn it on there own, if you want to have a Pokemon with dive have the Pokemon that you want learn dive in ruby or sapphire or emerald then have them trade you it and now you can use dive but not outside of battle because its not an HM.
No its not an HM in leafgreen.
Dive is not an HM in Pokemon firered or leafgreen however if you trade a Pokemon that knows dive from ruby or sapphire or emerald now you have a Pokemon that knows dive But you can't dive underwater in firered or leafgreen because it wasn't invented in the kanto region.
She doesn't give you Dive no one does that HM doesn't exist in leafgreen.
you can not, you can get a Pokemon that knows dive in battle but you cant use it outside of battle.
There's no Dive HM on Pokemon Leaf Green.