in the Pokemon league. Yes, it is but you have to go through a cave to get to it. Look on your map.
You get to the Pokemon league and you start from the end of victory road and there you go to a cave you see.
there is no cave of time
The turn back cave in Pokemon Platinum is in Seodoff Spring near veilstone city
Hippopotas is located in the Ruin Maniac cave in Pokemon Platinum.
north of sunny shore over the waterfall and through cave
beat the Pokemon league if yove already dn that talk to prof.oak in enterna city
I think its Dark Cave, I have 2 platinum games.
Fly to pokemon league, go to victory cave, he's at the very bottom left corner :)
in pokemon platinum go to victory road ( the cave right before pokemon league.) i dont know where but in the cave you find gabite. level up gabite to level 48 and voila you have garchomp.
You have to go to victory road (The cave you have to go in to get to the Pokemon league) And one of the trainers has it.I believe near the surfing area.
after you beat the Pokemon league go where the shoal cave is then look to your left and the is a dive spot dive and go through and then go up then there is a cave and that is the marine cave.