During the winter, Too-ticky lives in the octagonal boathouse together with eight small, invisible shrews. The house has board walls, and windows with small green and red window-panes, as well as a three-legged iron stove on which Too-ticky can cook her meals. Inside the Boathouse, there is also a round table that Moominpappa found floating in the sea.
In the summer, the Boathouse is utilised by the Moomin Family. During this time, Moominpappa’s boat is usually anchored to the narrow landing stage that leads to the bathing house.