Patapsco hike
Jan. 1: Hike 4 miles of the Patapsco River Walk with the D.C. Chapter of the Appalachian Mountain Club starting at 10:30 a.m. Details: amc-dc.org (click: "Chapter Activities") or call 410-263-1844.
Professional bull riding
Jan. 2-3: The Baltimore Invitational, a stop on the Professional Bull Riders' Built Ford Tough Series, will be held Jan. 2 at 8 p.m. and Jan. 3 at 7 p.m. at Royal Farms Arena. Tickets, which cost $15, $30, $50, $75 and $100, may be purchased at the box office, all Ticketmaster outlets and ticketmaster.com or by phone at 800-745-3000. Information: pbr.com and baltimorearena.com.
Boat show
Jan. 29-Feb. 1: The Baltimore Boat Show will be at the Baltimore Convention Center from 11 a.m. to 9 p.m. Jan. 29-30, 10 a.m. to 9 p.m. Jan. 31 and 10 a.m. to 5 p.m. Feb. 1. Information: baltimoreboatshow.com.