What is "seaways"

Usage examples of "seaways".

Gerard controls the southern seaways, and Caine is off in the northern waters.

Rutters that revealed the seaways to the New World or unraveled the mysteries of the Pass of Magellan and the Cape of Good Hope - both Portuguese discoveries - and thence the seaways to Asia were guarded as national treasures by the Portuguese and Spanish, and sought after with equal ferocity by their Dutch and English enemies.

When the great mountain building took place during the Cretaceous Period, seaways drained and swamps dried up.