Boat Easter egg

The boat. Its stern resembles a MJOLNIR Mark VI helmet.

In Halo 3, on the level The Storm, there is a large boat on the lake bed in the area where the player has to destroy the Scarab and AA Wraiths. The boat is beached on the bottom of the lake bed due to the Covenant's excavation of the Ark's Portal. The digging has caused the lake's water to drain, leaving the boat stuck.

Shiek of the Sea Poster

In one of the galleys of the boat is a fuzzy poster of Shi Kai Wang in an old colonial uniform from the 1700s. The poster reads "Shiek of the Sea", a reference to Wang's nickname: Shiek.

To access the ship, there are a number of methods:

• The easiest way to access the ship is to simply use theater mode or the Acrophobia Skull in Halo: The Master Chief Collection to fly to the boat.
• A much more complicated way involves Co-Op, and has one player in a Ghost. Then go up the ramp the player came from. Look to the left, and there will be a lamp. To the right of the lamp, there is a gap. Position the Ghost so that it can boost out the hole towards the ship. The player must jump on the Ghost and get their partner to boost out the hole. About halfway to the ship, they must jump off the Ghost. If they jumped at the right time, the Ghost's speed should have kept them going, so they land on the ship.
• Amusingly, the player can use the Flying dumpster glitch to lead themselves to the ship.

• 

  Shiek of the Sea poster on a wall of the boat

Trivia

• If viewed from behind, the ship's stern bears a resemblance to Master Chief's Mark VI helmet. Whether this is intentional or a case of pareidolia has yet to be confirmed.
• The Shiek of the Sea poster may be a reference to "Pimps at Sea", a long-running joke within Bungie that the developer would one day make a game of the same name.