Municipal 25 m teaching pool
Most cities · 0.8–1.2 m teach · clear indoor · year-round
The default classroom: warm, marked, with a movable floor in newer halls.
Pools and programmes that show how children actually learn.
Lesson venues are ordinary municipal basins and a few famous learn-to-swim cultures. Depths are typical teaching bands, not a booking sheet.
The best “site” is a warm municipal basin with a published syllabus and a short wait-list.
Most cities · 0.8–1.2 m teach · clear indoor · year-round
The default classroom: warm, marked, with a movable floor in newer halls.
Sydney, Australia · shallow to deep · ocean variable · summer lessons
Tidal baths used for school and club swimming — still water behind a wall, not a surf lesson.
Singapore · teach + 50 m · indoor / outdoor · year-round
A dense public-pool network in a tropical city-state; swim skill is treated as ordinary civic infrastructure.
Tokyo, Japan · 25 m · indoor · year-round
Ward sports centres run school and public lessons with strict hygiene rules and caps.
United States · shallow teach · indoor · year-round
A historic mass provider of Red Cross-style lessons alongside school programmes.
United Kingdom · 0.9 m typical · indoor · year-round
STA and Swim England staged lessons; often the only warm water in town.
Seoul, South Korea · 25 m · indoor · year-round
City sports complexes run high-demand children’s classes; wait-lists are a known urban fact.
Mexico City · teach basins · indoor / outdoor · year-round
Delegación sports centres offer low-cost lessons in a high-altitude megacity — access, not tourism.
Children learn in ordinary public tanks. Famous architecture is optional; a published level and a teacher in the water are not.