Mark Lane Sports Complex – March 15, 2026 River Vale’s first-ever Shamrock Shuffle 5K  kicked off its debut in style on Sunday, March 15, as runners, walkers, families, dogs, and strollers packed into the Mark Lane Sports Complex  for a morning full of fitness, festive spirit, and community pride. The event—presented by Run 4 The Love & Fitness with Friends , in partnership with the Township of River Vale  and the River Vale Police Department —benefited the River Vale Police