  This article delivers the dynamical cosmography of the Local Universe within
z=0.1 (1 giga light-years). We exploit the gravitational velocity field
computed using the CosmicFlows-4 catalog of galaxy distances to delineate
superclusters as watersheds, publishing for the first time their size, shape,
main streams of matter and the location of their central attractor. Laniakea,
our home supercluster's size is confirmed to be 2 $\times 10^6$ (Mpc
$h^{-1}$)$^3$. Five more known superclusters are now dynamically defined in the
same way: Apus, Hercules, Lepus, Perseus-Pisces and Shapley. Also, the central
repellers of the Bootes and Sculptor voids are found and the Dipole and Cold
Spot repellers now appear as a single gigantic entity. Interestingly the
observed superclusters are an order of magnitude larger than the theoretical
ones predicted by cosmological $\Lambda$CDM simulations.
