Here's a thought: What if it's not the same boat? And even if it is, how did Link get it in the first place? I haven't beaten OoA and thus never watched the Linked Ending, so I could be wrong, but couldn't it just be different? However, the sprite of the Linked Ending version of Zelda does look very close to Marin's, and Link did confuse the two in Link's Awakening, so there's always that. It just seems weird that the A Link to the Past Link has more of a resemblance to the Link's Awakening Link than the Oracle series Link. Granted, I prefer the design of the Link from the Oracle games, so that just leaves the question of how long after the Oracle games does Link's Awakening take place, and why Link ditched the white pants.