its near fortree go west
in route 114-116 & route 118. where groudon sleeps. its not called the land lair its called Terra Cave and you can catch Groudon in there first go to the weather instutute then talk to the guy that gives you castform erlier in the game and he'll tell you where you can find him but it will there is a drought there then go to where he was talking about but save your master ball for one of the latis.
to a mental instutute
right of fortree
West of fortree in the weather institute
The Weather Institute is not in Heart Gold. It is in Ruby, Sapphire, and Emerald.
go to the weather station talk to the guy on the roof
yes for emerald just talk to the weather guy ruby part of the story sapphire i think its also weather guy or trade it but if your friends not willing to just clone it in ruby or emerald and trade that
he is in a cave but you have to get the guy at the weather institute to tell you where he is at
He is to the west at the weather institute.
the weather instadute
you have to catch or kill kyogre
go west of fortree city and then there is going to be a bridge cross it and you will see the weather institute