not the long cliff, throw ur pikimin on the long narrow cliff thing that leads there(blue is of course highly recominded) ull need about 40-50 i belif or 20-30. anyway, throw then at the end, go a little bit on the bridge with olmiar, then call ur pikimin with B. after u did that, just walk by the cliff with the part. if u did not get enough pikimin to carry it, try again.
P.S.: I heard grimsack was back, WHO LET THE SORRY LOSER BACK IN!!!!!!!