The Dragon Boat Challenge has attracted a massive amount of interest, with 27 boats already confirmed.

Orienteering and the Little As Multi Carnival at Myimbarr will also attract lots of attention, while the Shell Cove Walk or Run for Fun is hoping to break the 500-participant mark for the first time.

"It's time to get ready to dust off your joggers and get out your sunscreen for the Shell Cove Walk or Run for Fun, which has become probably the most popular event, participant-wise, in the festival," Shellharbour Festival of Sport secretary Diane Johnston said.

"The event is a 5km walk/run or 9km run, will be held this Sunday at Shell Cove.

Ms Johnson said they were confident of breaking the 500 athlete mark this year, after going close last year.

"It is open to all people, young or old and parents with prams are also encouraged," she said.

The event begins and finishes at Freya Reserve - the main reserve/park on Cove Boulevarde and travels through some of Shell Cove's scenic reserves.

Coffee and food stalls will be available and entertainment by Woody, as well as a jumping castle for the children.

"All participants will receive a free drink bottle, a certificate of participation, piece of fruit and a chance to win a prize - kindly donated from local businesses - and will again be raising some much-needed funds for the NSW Cancer Council and the Shellharbour Hospital Ladies Auxiliary Club," Ms Johnson said.

Early-bird entry before the day is available for $10 (seniors) and $5 (juniors under-18) with a family of four (two adults and two children under-18) $25. Registration on the day is from 8am with the event starting at 9am. Entry on the day is seniors $15, juniors $10 and family $35.

To register contact the Shellharbour Visitor Information Centre on 4221 6169 or download the entry forms from shellharbourcityfestivalofsport.com.au