The Ontario Renaissance Festival is held every summer in Milton. It celebrates medieval culture through all sorts of performances, jousting, games, crafts, food and more.
It is only open on weekends, usually from the last weekend in July until Labour Day. Check the website for specific dates.
Update: Alas, in 2005 the Ontario Renaissance Festival packed it in for good.
Just north of Milton is the Halton County Radial Railway Museum. It is a surprisingly interesting attraction, covering many forms of mass transit in addition to the railway. The Musuem sits on the site of the former Rockwood railway stop. It has acquired many different rail cars, streetcars and buses that have been restored, or are in the process of being restored to their former glory. Admission to the musuem also gets you unlimited rides on the museum's train that day. This is a great attraction for families and railroad afficionados of all ages.
Admission is $9.50 for adults, 48.50 for seniors 65-90, $6.50 for youths 4-17, and free for those under the age of 4 or over the age of 90. Group rates and special tours are available on request.
The museum is closed for the winter from Halloween until May 1 each year
Steam Era is one of only a handful of big events that take place in Milton each year. As the name suggests, Steam Era recreates a bygone epoch and celebrates all things steam powered. It takes place every Labour Day weekend (first weekend in Sept) at the Milton Fairgrounds. There is lots to see and do, and it is a great event for young and old alike. This event is a must for anyone with an interest in history or engineering.
If you have a chance in late September don't forget to go to the fair. It is a very typical small town Ontario fair, with baked goods, lots of input by the town children - class projects and individual entries by all ages, animals, although I don't think it is recognized by any of the cattle organizations for point value, and there are equestrian events, and lots of equipment. There are some good food stands, and good old cotton candy (candy floss)!
Milton Fall Fair is my favourite event out of the whole year. It takes place at the end of September every year.
There are lots of things to see and do at the fair. My favourite part is all of the craft, baking, produce and photography exhibits. In the past couple of years I've entered a few things of my own, which makes it extra fun.
There's also a demolition derby, livestock exhibits, a midway and tons of other things to do.
The Milton Farmers' Market happens every Saturday from late April until Mid-October. It is set up in the heart of town on Main Street. It is open from 7 am until Noon.
There are always lots of great fruit and vegetable vendors. My old standbys are Plan B Organics and Andrews'.
Don't have breakfast before you go to the market because there are lots of tasty things to eat there. I would recommend any of the pastry vendors, or have a Back Bacon On A Bun at the Chamber of Commerce Scholarship Cafe.
Springridge is a great local attraction, especially for families. There's lots of wholesome fun for everyone in the family.
It is open from Easter until Christmas and have all kinds of seasonal produce and activities throughout the year.
If you don't have much time, you must at least stop by the bakeshop for a minute and pick up a fresh pie, some preserves or other goodies.
Milton is very much an agricultural town. One of the few tourist attractions is has is Country Heritage Park. It has lots of agricultural displays and activities from both modern times and eras gone by.