To get to the Undersea Ruins you have to surf east from Undella Town. There will be four diving spots. Dive into either of them to get into the Undersea Ruins. To get dive you need to talk to a lady in Undella Town.
There are no Pokemon in the abyssal ruins.
there are no Pokemon in the abyssal ruins
No ;( ~Chamesthehero
46
white forest
At the bottom of the ruins in the desert
In the Abyssal Ruins.
nothing
No, there are no legendary Pokemon there, just a rare item.
No stupid it's imposible
on Pokemon diamond where is the ruins
You should try trading unknown from a Pokemon game because unknown are known to have a spiritual connection with ancient relics and the ruins and their whereabouts.