You are ready to fight the elite 4, and champion. After that, you will probably be given the national dex to finish which is all 562 Pokemon, I believe. Oh, and make sure your Pokemon are at least 50 to fight the elite 4. They have super strong Pokemon.
The 8th Badge in Pokemon Diamond is called The Beacon Badge.
well go to the elitte four- i don't understand your question is it " what do i do after i defeat the 8th gymleader in Pokemon pearl?"
Well I don't know what to do because I beat the 8th gym leader and beat the e4! So I seen so far 145 pokemon. Well I don't know what to do? In Pokemon pearl???
Ah, climbing up a waterfall in Pokemon Pearl is quite the adventure! You'll need the HM move Waterfall and the Fen Badge to use it outside of battle. Simply teach the move to a Water-type Pokemon that has the required badge, and you'll be able to ascend waterfalls with ease. Just keep exploring and enjoying the journey, my friend!
Use the poketch app marking map. you get it from the president of the poketch company [jublie city} after receiving the 7th or 8th gym badge diamond and pearl not sure about platinum
== == You get the 8th gym badge in Sunyshore City. Hope this helps
you just need to explore the upper floors of sunyshore city and voiala! you have the 8th gym
The 8th Badge in Pokemon Diamond is called The Beacon Badge.
you catch it above the 8th badge in the water
you go to mt.coronet,go all the way to spear pillar and you find palkia then you go to sunnyshore city and get the 8th gym badge
Sunnyshore City Gym: Electric (beacon badge from Volkner)
The 8th gym battle is east of the hotles are. you will have to fight some triners before you get to the city. its called sunny shore city.
you beat the gym leader
Get the 8th Gym Badge.
You can obtain the 8th gym badge (the earth badge) in fire red from Giovanni in Viridian City.
It is your rival from Pokemon fire red and leaf green versions.
in Viridian city. the one that was locked.