Long Islanders were lacing up Saturday for the fourth annual Long Island Run and Dog Walk to raise funds for a service dogs organization.

The event was being held at Old Bethpage Restoration Village to benefit America's VetDogs, a group that trains service dogs for disabled veterans and first responders.

The organization says it costs more than $50,000 to breed, raise, train and place one assistance dog. The trained dogs can help their humans do all sorts of things, like opening doors, turning lights on and off, navigating intersections and more.

Organizers expected to raise more than $80,000 for the cause at Saturday's event.