Every man and his dog has been invited to take part in the second Dog Day Out at Henley Lake this weekend.
Organiser Chris Garland, of Masterton South Rotary Club and Henley Trust, said the idea for the event came from a Rotary club in Christchurch.
"We're always on the look-out for community service projects and fundraising projects we can use to generate funds to apply back to the community," he said.
The first successful event was held in 2009 and attracted about 80 dogs and their families.
"Everybody had a pretty good time but I think a lot of people weren't quite sure what it was," said Mr Garland.