Anyone who's keen for a free dip can visit the Genesis Energy Recreation Centre in Masterton, from January 26 to February 1.
A $12,000 grant from Lands Trust Masterton will cover the cost of the week making access to indoor and outdoor pools and hydro slides free.
Lands Trust committee chairwoman Christine Brewster said the grant was an extension of the trust's annual grants that assist school swimming programmes and pool hire for the primary school and intercollegiate swimming champs.
"This is a new way for the trust to benefit all Masterton people as the holidays draw to a close and as family finances tend to tighten up after Christmas," Ms Brewster said.
"The pools are a wonderful facility for our town and we wanted to give everyone the chance to take full advantage of them during the warm summer weather."