Work has started to restore a lock on the Newry Canal near Portadown.
Peter Maxwell from the Inland Water Association of Ireland (IWAI) says Moneypenny's Lock was damaged when farmers blew it up after a flood fifty years ago.
The work will eventually allow canoes and small boats to travel a further five miles along the canal.
It's expected to be completed by the end of the week.
‘Intensive work’ continuing to agree multi-year budget for Northern Ireland
Strength of evidence against man charged with murdering Lyra McKee questioned
Teenage boy arrested over cyber attack on schools’ IT system
Ulster University to cut up to 450 jobs amid funding pressures
Northern Ireland MPs call on Prime Minister to act amid fuel protests