Bagley Park is a multipurpose field located on the Southeast side of Warner, just off exit 8 on I-89. Bagley is open year-round (as long as the gate is open), and has 3 soccer fields, an ice skating rink, cross-country skiing, a canoe take-out, a Snack Shack (open during sporting events), and portable restroom facilities.

The Warner Rail Trail and the Bagley Field Rail Trail are part of the Concord-Lake Sunapee Rail Trail, an eventual 34-mile rail trail connecting Lake Sunapee and Concord, New Hampshire's state capital. Currently separated by a gap of two miles, work has started that will extend the Bagley Rail Trail closer to Warner. Both trails have a hardpacked, stone-dust surface. 

Running parallel to the Warner River and NH-103, the Bagley Field Rail Trail is a straight, 0.7-mile trail. The rail trail travels through woodland as it heads northwest past the Bagley Field sports fields and across the Warner River via a restored steel truss bridge spanning one hundred feet.