About Seahorse Valley
Seahorse Valley is one of the most-visited regions of the Mandelbrot set. It lies between the main cardioid and the period-2 bulb, centered around the complex number c ≈ −0.75 + 0.1i. As you zoom toward the boundary, the valley produces a near-endless cascade of double spirals shaped like seahorse tails — each containing smaller seahorses inside, all the way down. Halfway down most paths you will hit a minibrot: a perfect miniature copy of the entire Mandelbrot set, complete with its own cardioid, bulbs, and valleys. Mandelbro renders Seahorse Valley with the ocean palette by default. Pinch to zoom in, drag to pan, and copy the URL at any depth to share the exact view.
About the Mandelbrot set
The Mandelbrot set is the set of complex numbersc for which the iteration zn+1 = zn2 + c does not escape to infinity. Its boundary is a fractal of infinite detail: every region you zoom into reveals new spirals, dendrites, and miniature copies of the entire set. Seahorse Valley is one of the most recognizable patterns in this boundary.
How Mandelbro renders this view
At this zoom level, Mandelbro uses standard double-precision rendering with a parallel pool of Web Workers — every CPU core in your device runs the escape-time algorithm in parallel on a slice of the viewport. Push the zoom another twelve orders of magnitude in and the renderer automatically switches to its perturbation pipeline, which uses one high-precision reference orbit to keep deep zooms sharp. See how Mandelbro works for the full explanation.