Fishing, canoeing, swimming/wading, and nature study are waiting for you year 'round in the icy waters of the LeTort Spring Run. Premium trout fishing (with a PA Fishing License and Trout Stamp) can be found along the entire length of the stream, although some areas are catch-and-release fly-fishing-only. These latter stretches are well-marked. Take-home-for-dinner trout are lurking in the deeper waters of LeTort Park and certain stretches east of Carlisle Barracks. A good guide can maximize your catch!
The best (and safest) swimming area lies at the confluence of the chilly LeTort Spring Run with the warm Conodoguinet Creek in Middlesex Township. Where the waters meet, there can be a 20°F difference in water temperature...almost like going from the hot tub to the pool. Very invigorating...and a great place to launch your tubes or canoes!
Boating (rafts, tubes, canoes and kayaks) can be a tricky affair on the LeTort. Much of the stream is shallow and beset with low bridges, fallen trees, and other obstacles. Further, portage around the restricted Carlisle Barracks is about a half-mile. Nonetheless, there are stretches where an idyllic float may be found with only herons, ducks, and songbirds (and the occasional fisherman) to interrupt your drift. PA Fish and Boat Commission regulations apply.
By far the best recreational attraction associated with the LeTort Spring Run is the LeTort Nature Trail. This three-mile hiking trail stretches from LeTort Park in Carlisle to South Spring Garden Street in South Middleton Township. The entire length is ADA Compliant. Entrances to the trail are the trailheads at either end, a dirt path from a pull-off near the stone bridge on Bonnybrook Road, and behind Lamberton Middle School near the South Bedford Street stub. The trail is open year-'round for nature walks, hiking, jogging, bicycling, cross-country skiing, dog walking, and fishing access. Motorized vehicles (except wheelchairs) and camping are not permitted, and additional regulations are posted at the trailheads.