May 23 and Aug. 5, seniors can stroll the Nat’s Park bases. Aug. 5 is Grandparents Day and seniors will be invited to include their grandchildren in the Stroll with a valid ticket. All fans who purchase a ticket to Senior Stroll the Bases can stroll the bases after the game. For more information or to purchase a group of 13 or more, contact Jennifer McCarty at 202-640-7648 or e-mail email@example.com. Tickets must be purchased in advance. Tickets for this promotion are not available at the Nat’s Park box office.