Westminster Lodge Leisure Centre will swing its doors open for free on Saturday in a bid to help get families active.
The Hollywell Hill sports centre will host the free Big Family Challenge between 12pm and 4pm, with a range of fitness, fun and prizes in store.
Families will be tested on their stamina, agility and coordination to be in with a chance of winning a trip to Disneyland Paris.
Duncan Jefford, Regional Director for Everyone Active said: "We are looking forward to welcoming both members and non-members to the centre to try their hand at some of the activities on offer.
"It’s that time of year when people are looking to dust off the cobwebs and beat the winter blues so why not come along and enjoy some free family fun. It’s set to be a fantastic event for all with some great prizes to be won."