The Island of Kanuba is a free supplement for 7th Sea and Swashbuckling Adventures.
From the file's introduction
The world of Théah is more diverse than seven nations, more potent than six warring pirate fleets, and larger than any four prophets. Beyond the boundaries of the seacoasts lie hundreds of islands and uncharted lands that only the bravest of sailors dare seek. The existence of such lands developing independent of the great continent suggests a part of history that even the Explorer's society has trouble explaining. Yet, beyond the mighty walls of the Church and beyond the grasp of the greedy merchants, inhabited islands have scattered themselves across the great seas and oceans of Théah.