The popular event, which runs until Monday, May 8, features an array of children’s rides as well as ones for older children and adults with a head for heights.
The rides and other attractions are spread across the Market Place and Wide Bargate.
Saturday also saw a model fairground exhibition at the nearby Guildhall Museum.
To order copies of Lincolnshire World’s photos, visit the photosales website, alternatively, call 0330 4030033, or email [email protected].
9. Candy woman
Melainie Wynn prepares some candy floss on the sweets stall. Photo: David Dawson
10. White-knuckle time
High above the chimney tops is where you'll find these thrill-chasers. Photo: David Dawson
11. Giddy-up
Ruby Tomlin, 7, of Boston has a go on the Galloping Horses ride. Photo: David Dawson
12. Choo-choo
Andrew Whicker, of Kirton, with Grace Smith, 3. Photo: David Dawson