The date has been set for the Foyle Hospice Swimathon 2017.
William Street Pool will host the charity event on Saturday 8th April.
Participants can set their own challenge, swimming between 10 and 200 lengths to raise funds.
It's open to everyone from children and novices to experts, with swimmers participating as an individual, team or family grouping.
Register your interest by emailing:
petertmclaughlin@hotmail.co.uk