Wollondilly FishIn's opening weekend draws huge numbers: Photos

It was a fisherman's paradise in Picton on the weekend.

Keen anglers reeled in hundreds of catches at the 2019 FishIn event at Wollondilly Leisure Centre.

The centre's outdoor swimming pool was filled with hundreds of trout for the challenge on Saturday and Sunday.

Centre manager James Barnes said there was a "really good turnout" of people across the two days.

"There were well over 500 people there which was really good. In particular, there were lots of dads and grandparents with their grandchildren," he said.

"About 200 fish were caught. The fish were really biting in the early morning and late afternoon.

"People found it a lot tougher during the middle of the day."

FishIn raises funds for Our Community Pantry, the Bargo-based organisation that helps families in need.

Last year's inaugural fishing event raised more than $20,000 for Our Community Pantry.

The organisation's founder Paula Zrilic said organisers hoped to raise even more money this year.

"Money will go towards getting an external freezer and a bigger [delivery] truck so we can help more families," she said.

FishIn will continue this Saturday, August 10 and Sunday, August 11 at the Wollondilly Leisure Centre.

The one-hour sessions will start at 6.30am, 7.45am, 9.30am, 2pm, 3.15pm and 4.30pm.

Families can purchase a ticket for $20.

Participants are invited to bring along their own fishing gear, but spare reels are available if needed.

No fishing licence is required.

Mr Barnes said the pool would be topped up with fish over the coming days ahead of the second weekend of action.

"There are lots of tickets still available for people to come down," he said.

"Hopefully we won't have any fish left over by Sunday."