On the Seneca trail right off co Rd 21 you can drive up in that field and it's about a quarter mile from there. I take the kids all the time. From the park itself it's about half a mile.
There's a couple different lean-to as you'd have to look at the map there's a couple that are right off the road and then there's a couple that you walk in about a half a mile
Thanks! Your answer is awaiting moderation.