Per Wikipedia, Larkin State Park Trail is a Connecticut rail trail that follows the former New York & New England Railroad roadbed across the towns of Southbury, Oxford, Middlebury, and Naugatuck. The trail is 10.3 miles long; its eastern terminus is at Whittemore Glen State Park, the western at Kettletown Road in Southbury
I had my road bike so wondered if the trail would be manageable for that. While I could handle it, there were different road types so I would recommend a hybrid or a mountain bike.
My most favorite aspect of these paths, however, is finding the off path jaunts to “narnia” as my friend and I like to call them.
Suddenly my ears perked! I only heard a bit of extra waterflow and knew there may be something of interest around! Climbing down a decent embankment that was cleared by others I found I had been riding over a stone bridge beneath there was an encouraging pool of water.
I even saw a beaver!
For safety sake, do ensure you are riding the right gear and if you go off trail ensure you are dressed appropriately and check for ticks.
Pivot and Pause in New England 