Ziplining in Rensselaer County - 50 percent Off
You can order the voucher here which is good through August 31 of this 2013 season.
Engelke Farm, which also does hayrides/a cornmaze in the fall, XC sking in the winter and sells items at farmers markets, is located at 463 Garfield Road, off Route 2.
Pricing for Ziplining normally is: $15/person for 1 ride on 2 lines, $20/person for 2 rides on 2 lines, or $30 for one hour of unlimited rides, according to their site.
Hours of operation - 11am-5pm on Sat/Sun in May, and 11am-5pm on Thursdays/ 11am-9pm Fri/Sat/Sun in June-August.
Ziplining is done on a reservation basis only and cash is required.
Reservations can be made by calling 337-0103.
Another ziplining possibillity - Adirondack Extreme.
And for giggles, there's an aerial course at Jiminy Peak.