One Piece

At the edge of the East Blue, Reverse Mountain towers like a spear from the ocean floor, serving as a perilous gateway to the Grand Line. The mountain features a steep, V-shaped canal that defies physics, pushing ships upward with powerful oceanic currents. Jagged rocks and sharp winds create a treacherous environment, while a half-broken warning sign ominously advises against the ascent. The area is known for unpredictable tides, a rocky choke point littered with shipwrecks, and rumors of a massive Sea King lurking beneath the waves.

A towering mountain with a steep canal, surrounded by jagged rocks and dense mist. The entrance is marked by a weathered warning sign, and the waters churn violently around it.