Just found a brig in the forest south west of Terinyo. Boarding it produced the following (non-fatal) error:

de.adom.jade.JadeError: Unexpected tile for a seaworthy craft: de.adom.jade.world.complexes.locations.maps.tiles.e@155d4be
at de.adom.jade.world.complexes.locations.maps.mobiles.crafts.AbstractSeaworthyCraft.getTileBasedAction EnergyModifierPercentage(SourceFile:204)
at de.adom.jade.world.complexes.locations.maps.mobiles.crafts.AbstractCraft.getUsedActionEnergy(SourceF ile:243)
at de.adom.jade.beings.Being.getUsedActionEnergy(SourceFile:1337)
at de.adom.jade.beings.Being.actImpl(SourceFile:869)
at de.adom.jade.kernel.actors.AbstractActor.act(SourceFile:58)
at de.adom.jade.kernel.actors.ActorReference.act(SourceFile:60)
at de.adom.jade.kernel.GameLoop.run(SourceFile:141)