Go Nats!! Join St. Lukers at the Nats game on July 29th @ 7:05 p.m., when the Nats play the Rockies! AND, skip the traffic, avoid the crowds on Metro, and ride the Potomac Riverboat Company’s Baseball Boat to DC Nationals Stadium. Departure at 6! Combo tickets for the game and Baseball Boat are $30 per person! Game tickets only are $14.