Guild Wars 2

Tried twice to complete wrecking ball no luck.
There is a piece of wall in top right hand side of map that seems stuck inside the snow I cannot destroy it,
Anyone managed to get this achievement?

did you try using aoe skills or ranged weapons?

yer tried everything, ppl said in town they have done it so will try again

ok done, please delete this thread

can you name a specific area of the map where the missing destroyable was? im trying since 2hours to find something missing to destroy but cant get it.