Following the route planned by Li Yuan and Amin, their next destination is a larger island north of Bankra Island, Solomon Island.
There are three reasons for choosing this island.
Firstly, this island is also a regular site where the Black Prison Trading Company sells slaves, so they can check if there are any members of the Aquaman tribe there.
Secondly, Xiao Bei has arranged for Ahui to be on this island. If possible, they can bring Ahui back to Bankra Island, reuniting Aray's family.