you must get oaks letter then go to route 224 where you will meet oak. he will tell you about the large rock on route 224 then ask you to put who your thankful for. suddenly seabreak path will appear.
If you mean Shaymin its a legendary Pokemon of flowers! :D
Heatran is a ledgendary in Pokemon platinum.
TM 03 is Water pulse. You can obtain it at the Ravaged path after beating Crasher Wake at Pastoria Gym.
There's no Route 505 in Pokemon Platinum.
The routes in Pokemon Platinum begin in the 200s.
You ether go to a Nintendo event or you can use a AR code where there's a a hidden area in the south of Victory Road guaded by some man
If you mean Shaymin its a legendary Pokemon of flowers! :D
North of the Pokemon league (Take the seabreak path)
Go to the new path a victory road
there is no ice path in Pokemon platinum. it's in johto (heart gold/soul silver/gold/silver/crystal)
in Pokemon platem tern back cave is in side of sprind path wall
Take the path down from snowpoint city.
You can find Octillery on the same path from Pastoria City to the Pokemon League.
you find it at spring path by turn back cave
its on the spring path in between pastoria and veilstone
Danny Shamon's birth name is Daniel Shamon.
go to victory road head right until you find a tunnel go through the tunnel team up with this person beat all the trainers go through heaps of water go onto this island beat all the trainers go up the stairs follow the path you will find prof oak talk to him and give your thanks and lots of flowers should bloom shamon should come do this path then run away follow shamon and there you have it. must of beat e4 and must of obtained national dex.