Bowsprit

Bowsprit}
This ship part is required for the S.S. Dolphin to escape the planet.
Weight	30
Max. carriers	50 Pikmin
Location	The Distant Spring

The Bowsprit is a rocket part ingested by an Armored Cannon Beetle. The Bowsprit is the "face" of the Dolphin designed by Captain Olimar and gives the Dolphin its sleek shape. It has a remarkable resemblance to a Pokéball when looked at from the top.

Collecting the Part

The Bowsprit, next to the dead Armored Cannon Beetle that swallowed it.

Getting it requires many steps. First, defeat all Bulbears and Puffy Blowhogs that will be in the way back to the ship. There are two paths to get to it: either cross the fire geysers near the Beetle, or take the safe route near the landing site by building the twig and unplugging the geyser. Then defeat the Beetle and retrieve the part. Build the bridge and destroy the gate so Red Pikmin can carry it back to the Dolphin, defeating the Shearwigs along the way.

Notes

See here.