How do you get Groudon and kyogre on Pokemon lake?

Answer 1

before you catch pokemon lake pokemon you must beat all the 68 gym leaders

goudon can be found in the two rock caves

and kygore can be found in map 7

You can get rayquaza on map 9

You can get raikou on map 9

You can find suicune on map 7

You can find Absol on map 2

You can find lugia on map 12

You can find arceus on map 16