Why go
The basin adds historical depth to a Market Square stop. Its established name recalls the unsanitary nineteenth-century harbour, when sewage contaminated the South Harbour; today, the adjoining quay keeps the location tied to boats and waterfront activity. The harbour basins were built after the former muddy bay began to be reshaped in the early nineteenth century.
What to look for
- The harbour basins were built after the former muddy bay began to be reshaped in the early nineteenth century.
- The basin sits immediately beside Market Square at the edge of the South Harbour.
- Its Finnish name, Kolera-allas, preserves the memory of the polluted conditions once associated with this waterfront.
Useful to know
- The municipal source documents the adjoining quay but provides no opening hours or access conditions for the basin itself.
Your next visit
Estimated · Declared scenario and planning estimates; no live opening, weather, queue or booking service.
Outdoor visit · 30–45 min
World planning estimate; admission, opening, visit duration and access need checking.
