you dont it was just a thing on ranger
you don't get them together you have to find the sea crown and get manaphy from Pokemon ranger
There is no temple of the sea in Pokemon Platinum. In order to get Manaphy in Pokemon Platinum you need to go to Manaphy's special event at any Gamestop (special events are very rare). The temple of the sea isn't in the Sinnoh region.
Pokemon Ranger and the Temple of the Sea NeonGreen16
you have to have diamond, or pearl, or platinum-emerald is hoen sea temple Pokemon are sinnoh
There is no Sea Temple that I am awear of. Hehehe... You got the idea of it from the Pokemon movie or book!
It's a movie but you can get a Manaphy egg in a wi-fi event(I think it's over)
an event from a Pokemon movie like the manaphy event was from Pokemon ranger temple of the sea. the Darkria event from Pokemon rise of Darkria should be out soon PS.from Pokemon rise of Darkria if you get that event you will get the membership card so you will be able to go to new moon ialand were Darkria LV40 lives.
you find a egg in the surronded sea and the next day it hatchs into manaphy
Surrounded Sea
You have to import this egg from Pokemon ranger the web site www.Serebii.com has more information and has a code you use but you can not get it in emerald only Diamond or peral so if you want a Kawii prince of the sea I would recommend to buy and two DS/DS lite one for diamond/peral and one for Pokemon ranger Pokemon Diamond/peral to get him. or just ask a friend if u could borrow their ds for one of them... dude u don need to spend 350 bucks to get a manaphy. if u have a ds and pearl/diamond great, if not, cheat
manaphy leaves you to get stronger with walren in the ocean
put it on a Pokemon