Many modern canal boats retain the traditional layout of a small open, unguarded "counter" or deck behind the rear doors from which the crew can step onto land. It is possible to steer from the counter, but this is not very safe, with the propeller churning below only one missed step away. The "tiller extension" allows the steerer to stand in safety on the top step, forward of the rear doors. (On a working boat, this step would have been over the top of the coal box). On cold days, the steerer can even close the rear doors behind themselves, and be in relative comfort, their lower body in the warmth of the cabin, and only their upper body emerging from the hatchway and exposed to the elements. In good weather, many trad-stern steerers sit up on the hatchway edge, a high vantage point giving good all-round visibility. On trad boats, the bow "well-deck" forms the main outside viewing area, because the traditional stern is not large enough for anyone other than the steerer to stand on safely. Internally, trads may have an engine room forward of a traditional "boatman's cabin", or an enclosed engine tucked away out of sight and the increased living space this brings.