Seaside traitors (minimap):
This map is playable by 5 players, there are a lot of stone and iron and the island is very fertile.
However, placing walls is going to be so much harder now, you need to watch the hills aswell.
Seaside barbarians:
Playable by 4 players, this map looks like a buckler and is somewhat less fertile than the other, there is more iron and less stone. Less trees aswell, but there is pitch on this one.