The ones out the front of the lake?
If so you need to go battle the gym leader
you get a stink bomb ( route 122) the stink bomb is hidden or you can battle them
get the HM Defog
Do you mean when you want to go to Lake Acuity? If yes, then you must first defeat the Snowpoint City Gym Leader. After that go back and you'll be able to access to Lake Acuity, if you're playing Pokemon Platinum, you will need HM08 Rock Climb which is available in the snow on the way from Mt. Coronet to Snowpoint City. Its near a house with a hiker in it, and keep your eyes open! ^.^
how do I get past the two guys blocking route 225?
simple. beat the elite four and go 2 snowpoint town. when you talk to the person there, she wont let you in but Candice says that you can enter. on the 5th floor, there is regigigas, but it only battles you when you have Regirock, Regice, and registeel with u
You have to have defeated the seventh gym leader in Snowpoint city
Defeat the Snowpoint City Gym Leader
Go to the library in Canalave city after you fight your rival their and talk to prof. rowan, after the story go lake verity then to lake Acuity near Snowpoint City
you get a stink bomb ( route 122) the stink bomb is hidden or you can battle them
beat snowpoint city gym then get palkia if you have Pokemon pearl or go and get dialga if you have Pokemon dimond then try again then you should be able to get there.
you battle them
you need to fight them to get past
you get the National Dex.
beat the snowpoint city gym leader
To get to Snowpoint City, you must go east. Not across the lake.
easy just win a Pokemon contest
get the HM Defog