No and Yes, @Singapore Sports School and @GESS we have a covered indoor pool, you can swim even in a thunderstorm; thus, Rain or Shine. No workouts need be ruined by bad weather.

Whereas @Orchid Country Club, the pool is an outdoor pool and hence the Swim Class will be stopped if there is an alert for lightning and thunderstorm, But we have a Land Training program especially designed for a situation like this.