The 16 Hour Lock-in

Carolina Beach, United States • 21 Nov 2026

The 16 Hour Lock-In : Carolina Beach State Park

The 16 Hour Lock-In is an endurance event held at Carolina Beach State Park in Carolina Beach, North Carolina. Participants have 16 hours to complete a 4.5 mile loop as many times as they wish. The event is a no DNF format, so runners may stop or continue around the loop according to their own goals. The course direction for this year is clockwise.

The trail is a coastal maritime forest route with groomed, wide and relatively flat trails. Each loop includes two hills with about 100 feet of climb, and surfaces of dirt, sand, pine straw, roots and a short section of road with a grass option. The loop returns through the start/finish area where personal gear, bathrooms, and an aid station are accessible.

Aid station offerings include water, Tailwind, salty and sweet snacks, and two hot meals provided during the event. The race is cup free; all participants must bring a refillable hydration vessel. Headlamps or similar lights are required for anyone running past 5:30 pm.

Camping is limited. There are 30 group campsite spots adjacent to the race area that include a 10 x 10 personal space, primitive facilities, and an overnight car pass. The park also has a family campground less than one mile away for RV, tent, and cabin camping.

Recognized finish distances:

  • 13.1 miles
  • 26.2 miles
  • 50 kilometers
  • 50 miles
  • 100 kilometers

All participants receive event apparel. Patches and a buckle are awarded for certain finishing distances. Visit the organization's website for the most recent information.

Race information

5 mi
4.5-Mile Loop
Visit the organization's website for the most recent information.
Trail runs nearby

Badwater Cape Fear on Bald Head Island, NC offers 50 km and 51.4-mile ultrarun options combining 12 miles of island roads and forest with long out-and-back beach sections between Cape Fear and Fort Fisher.

A trail 5k'ish run and walk starting at Good Hops Brewing through Carolina Beach State Park on June 20, 2026, with two water stations, post-race awards and brewery festivities; proceeds benefit local school and park groups.

A multi-event race in Hampstead on August 22, 2026 featuring a 20K run completed as four 5K loops, a Beer Mile, team and individual entries, and age graded results plus a combined Beer Mile and 20K challenge.

Monster Dash is a 5K trail run at Carolina Beach State Park on October 17, 2026. The race commemorates Great Trails State Day and raises funds for young runners.