Hiawatha unlike the other high capacity cabins is not mirrored, instead it is split into 4 cabins, which all follow a similar layout just with different housing capacities. The pictures below are from Hiawatha 1.
The living area has bed space for 10+ people as well as a full bed for adults, or leaders. There is also a table, microwave, and mini-fridge in the cabin.
The fireplace in Hiawatha is more of a design addition as it cannot hold any fires, however it adds to the overall aesthetic of the room.
The bathroom in the Hiawatha's each have a double sinks, as well as a shower, toilet, and urinal.