I was in Marty's on Saturday and TC said the tuesday evening MTB rides are going to get started again. They leave about 6:00pm from the hackettstown shop and generally go until almost dark. They usually go through Saxton Falls/Stephens and into Deer Park and maybe a bit into Allamuchy. I am not real familiar with the trails so it's been a good way to check out unfamiliar places at a more or less intermediate pace. I had fun on a bunch of these rides last year, and highly recommend checking them out.