Pokemon:
You can catch them Surfing in Victory Road
You can catch one in Union Cave on Fridays. They are also in the Safari Zone but are rare there.
Lapras appears on Surfing Spots under the Village Bridge.
Citadark Isle (it is a shadow pokemon)
The only Pokemon Games so far that Lapras doesn't appear in is
Chat with our AI personalities
you need a cheat that can catch a trainer's Pokemon to have lapras. because there is a trainer that has a lapras.
you find lapras in union cave B2 only on fridays
I don't think you can but if you have an Action Replay you could catch the trainers lapras.
you can find them on fridays in unoin cave
im not sure but i think you catch it in union cave on a friday I'm defentily sure that you can catch lapras but only in union cave on friday that is wierd