Mrs Hook saw her mother die from MND in December last year and she describes it as a "hideous disease."
The walk was one of 14 held around New Zealand yesterday and the Whanganui walkers headed off from the i-site at 10am.
Led by the West Coast Bombers roller derby team, they walked along the river to Dublin St Bridge, back along the east side and over the City Bridge where a sausage sizzle awaited them back at the i-site.
The 5km walk was completed by many children riding scooters and there were around 50 dogs accompanying their owners on the walk.
Half the money raised from Walk 2 D'Feet will go towards supporting MND research in New Zealand.