Practical
Scale, season, and the ship
Pack for rock, wind, and a village that may be done with dinner earlier than a city. Little Tub in a July weekend is crowded because it is small, not because you failed to find a secret street. The Bruce Peninsula's shoreline can be dangerous in bad weather. Follow park guidance at the water. The Chi-Cheemaun adds vehicle lineups on sailing days. None of that is a reason to invent extra hotels.
The supply of stays is small, and summer weekends are the busiest period. Take that pattern to a property or a travel provider and ask what they can do for your dates. DVSVC cannot see the answer. Choose Little Tub or a peninsula pin, then reserve elsewhere. If nothing fits, use a base farther down the peninsula rather than inventing a harbour room.