There is always a market at Manly on Sundays, but the BIG market is Jan Power's Manly Markets on the 3rd Saturday of each month.
The atmosphere at the Farmer's Market is great with musicians, crowds, lots of different products to test or buy. You could spend hours there.
Want to have a stall there? The best thing to do would be contact Jan Power's office, so best go to the website.
The next one is on November 21st!