The popular event, on Saturday, returns to support the Westpac Rescue Helicopter Service.

At last year’s inaugural Denman Pig Races, about 800 people turned up to see the curly tails fly around the track, raising $20,000 for the cause.

Gates open at noon, with the first race at 1pm.

Event organiser Merry Freeman said it was something new and entertaining, and a fun way to raise money.

“People who attend the day will have an absolute ball, it is going to be a great fun day for all ages,” she said.

There will be market stalls, free laser tag, jumping castle, tea cup ride, a vintage car display, food and drinks, entertainment and fireworks.

Entry is $10 per person, and $5 for under-18.