In modernity the oceans are places of globalisation, capitalism, and climate change. Through Afrofuturist visions the seas offer aesthetic languages for aquatic transformation and fictional marine species. Afrofutures mess with temporalities of past, present and future. They afford to consider together transatlantic crossings of enslaved people with today’s migrations. The artists’ projects discussed offer new perspectives on historical and environmental changes through the recovery of Afrodiasporic subjectivities. Their re-imaginings offer different possibilities to address the environmental crisis within a global world.