The Gunpowder River in Maryland offers distinct paddling experiences across its freshwater and tidal sections. For a freshwater river trip, a popular route runs between Prettyboy and Loch Raven Reservoirs, specifically from a put-in at Masemore Road to a take-out at Monkton Road, with an optional shorter take-out at Blue Mount Road. This section is a trout stream with Class I-II rapids, where water releases from the upstream reservoir typically occur during August and September to maintain adequate flow; paddlers are advised to check water levels, which need to be at least 1.7 feet. The scenery is beautiful and serene, featuring one notably wet rapid. A bike path runs beside the river near the take-out, and a train station at Monkton Road provides restroom facilities. For tidal saltwater paddling, a primary launch is at Mariner Point Park in Joppatowne, which has two concrete boat launches and parking that can get very busy on weekends. From here, paddlers access the broad Gunpowder Basin and the adjoining Little Gunpowder Falls. This area is a vast, open salt marsh network where paddling is heavily influenced by wind and tide; a windless day with a favorable tide provides easy paddling, but chop can develop with wind. Wildlife sightings are abundant, including great blue herons, osprey, and red-winged blackbirds. Exploration options include paddling around Mariner Point, into Big Gunpowder Falls, Days Cove, and Gunpowder Cove, though some narrow channels may be obstructed by fallen trees. The Hammerman Area of Gunpowder Falls State Park is another noted access point for events and general paddling on the tidal river.