すば / sva | SS: Useless Mast Part Skip in Sandship @sva161620 | Uploaded 8 years ago | Updated 1 hour ago
(EDIT) I found a better spot and it saves time now! Watch this new video! v
youtu.be/xMJb0Hm5jzk

This is similar to boss key early in Ancient Cistern. There is special death warp and you can avoid it with high flip.
If we find a better spot for death warp, it might be faster.