Every year the Pennsylvania Pump Primers hold a muster along the Susquehanna River in downtown Harrisburg. this was the 41st annual muster. It begins as a parade from the Farm Show building to Riverside Park on the south end of Front Street. Antique fire engines and ladder trucks park along the river, they draft water in and spray water out. It's been a few years since my last visit but the weather was just right . It was just hot enough that the mist blowing back off the river felt refreshing.