The boat flows smoothly forward.

[Tunnel of Sorrow]
The damp air hangs upon the water's surface like a sodden cloak. The air is rich with a tangle of odors that together, take one's breath away - by causing one to gag. It is as if something large and unpleasant had chosen a hot and humid day to die underneath the rough planks that serve as seats in the boat. Even a corpse grub could not find a pleasant moment to enjoy life with such an assault on its senses.
Obvious exits: none.