Harb is a small excursion steamer that fills both in the harbour and in the lakes of this world at home.
What he doesn't like is the rough, open sea. High waves can make him capsize due to the high centre of gravity. Since you don't have much of your trip anyway, it's better to sail slowly and comfortably over the water.
Nevertheless, you should always be careful that children do not put this toy in their mouths.
Notes:
Colour change is possible by changing the filament.
To make HARB swim better, I recommend to print the floor with 40% infill.