"Experience pony rides, crazy maze, carnival games, bungee jump, zip line, human hamster-ball racing, apple sling shots, pumpkin decorating and so much more," organizers said.
"Great food, beverages and baked goods will satisfy hungry appetites as children and families listen and dance to the music."
For members, the fair opens at 9.30 a.m. For non-members, it's 10 a.m.
Admission is still free, and folks can either buy ticket individually at the event or buy "Busy Bee Bands" which include unlimited rides (except pony rides) and attractions for a single price. It doesn't include the food tent, bake sale and carnival games.
If bought in advance, the bands are $40 for adult and child members, and free for kids under 2. You can buy them here. They'll be $50 at the door.
For non-members, they're $50 in advance.
To save $10 on entry and get in at 9:30, become a member of the Nature Center. You can do that here.
No dogs are allowed at the event. The rain-or-shine fair runs until 5 p.m. Call 203-966-9577, ext. 10, for more information.
The New Canaan Nature Center is a nonprofit environmental education center, located at 144 Oenoke Ridge.
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