Alum Creek is a significant waterway in central Ohio, originating north of Delaware and flowing south for approximately 58 miles before joining the Scioto River in Columbus. This scenic stream carves through Delaware and Franklin counties, draining a watershed of about 200 square miles. Paddlers can enjoy a variety of experiences on Alum Creek, from placid flatwater on Alum Creek Lake to gentle moving water downstream of the dam. The creek offers mostly Class I rapids with occasional Class II sections during high water, making it suitable for beginners to intermediate paddlers.

The 3,387-acre Alum Creek Lake, created in the 1970s, provides ample opportunities for flatwater paddling, with several launch sites along its 40-mile shoreline. The most popular paddling stretch runs from below Alum Creek Dam to Westerville, offering a peaceful 8-mile journey through a surprisingly rustic corridor despite its suburban surroundings. Paddlers can put in near the dam and take out at either Heritage Park or Main Street Park in Westerville. Another noteworthy section extends from the dog park off Watkins/Spangler Road to Groveport, providing urban paddlers with a convenient escape.

Spring and early summer typically offer the best paddling conditions, with higher water levels making for easier navigation through shallow areas. Fall colors can provide a spectacular backdrop for autumn paddles, though water levels may be lower.

Wildlife enthusiasts can spot a variety of species, including bald eagles, ospreys, and jumping fish. The creek's ecosystem supports diverse aquatic life, making it a popular destination for anglers targeting smallmouth bass and other species.

Key landmarks include the towering shale bluffs along Alum Creek Lake, the Alum Creek Dam, and the historic town of Westerville. The Alum Creek Greenway Trail, spanning 24.5 miles, offers opportunities to combine paddling with hiking or biking.

Access points are numerous, with popular put-ins at Cheshire Road, Howard Road, and Lewis Center Picnic Area. The creek passes through or near several towns, including Delaware, Lewis Center, Westerville, and Groveport, providing convenient access for urban paddlers.

Historically, Alum Creek played a role in the Underground Railroad, with several safe houses located along its banks. Today, it serves as an important recreational resource for the Columbus metropolitan area, offering a quick nature getaway for city dwellers.

Paddlers should be aware of potential hazards such as low-head dams and strainers, particularly after storms. It's essential to check water levels and weather conditions before embarking on a trip. The Ohio Department of Natural Resources manages Alum Creek State Park and enforces boating regulations on the lake and creek.

While most trips on Alum Creek are day excursions, adventurous paddlers can string together multi-day trips by combining lake paddling with downstream sections, utilizing campgrounds at Alum Creek State Park for overnight stays.