Summary

Thurgood Marshall Sisson v. Ruby — Opinion of the Court

If a swimmer at a public beach is injured by another swimmer or by a submerged object on the bottom, or if a piece of machinery sustains water damage from being dropped into a harbor by a land-based crane, a literal application of the locality test invokes not only the jurisdiction of the federal courts, but the full panoply of the substantive admiralty law as well.
Source: Wikisource

Thurgood Marshall Sisson v. Ruby — Opinion of the Court

Docking a vessel at a marina on a navigable waterway is a common, if not indispensable, maritime activity. At such a marina, vessels are stored for an extended period, docked to obtain fuel or supplies, and moved into and out of navigation. Indeed, most maritime voyages begin and end with the docking of the craft at a marina. We therefore conclude that, just as navigation, storing and maintaining a vessel at a marina on a navigable waterway is substantially related to traditional maritime activity.
Source: Wikisource

Thurgood Marshall Sisson v. Ruby — Opinion of the Court

The sensible rule to be drawn from our cases, including Executive Jet and Foremost, is that a tort occurring on a vessel conducting normal maritime activities in navigable waters-that is, as a practical matter, every tort occurring on a vessel in navigable waters-falls within the admiralty jurisdiction of the federal courts. Foremost is very clear that the Executive Jet requirement that the wrong bear a "significant relationship to traditional maritime activity" applies across the board.
Source: Wikisource

Get perspective with Kwize: daily news enlightened by great literature