Run on one of the longest barrier islands in Texas
on Mustang Island
5k, 10k, Half Marathon, Marathon, 50k, 50mi
November 6, 2021

The Barrier Island Ultra

The Race

5k, 10k, Half Marathon, Full Marathons 50k, 50mi

Eco Region:  Coast

Take in the Texas coastline with salty sea air, packed sand beaches, and plenty of sunshine. After running on our flat, fast course, slow down with a beer and seafood at a beach side bar and grill next to the finish.


Call for Volunteers

Join the Fun

As a Volunteer, you are the person that gives the runner the support and motivation to continue.  We know how  important each of you are to the entire day and promise you a fun and rewarding experience!


Multiple Packages

Great Opportunity

This is a great opportunity to share your company, brand and services with a large and targeted group. As a sponsor of one or more events, you can select from the multiple sponsorship levels available.

The Race

The Course

Just adjacent to the longest undeveloped barrier island in the world, Mustang Island gets its name from the wild horses that roamed the island for hundreds of years. This chain of barrier islands protect miles of coastline, dunes, prairies, and wind tidal flats teeming with life. They are also a safe nesting ground for the Kemp’s Ridley sea turtle and a haven for over 380 bird species. 

Runners will start the race at our salty seaside bar serving as the start/finish area. Experience crashing waves, salty air, hard packed sand, ocean breezes, and open beaches on this out and back course. Wind down after the race with sand between your toes and enjoy a beer, a margarita, or seafood to mark the occasion. 

Start and Finish Times

The Start and Finish for all distances will be at The Beach Lodge in Port Aransas.

  • 6:00 am - 50 mile Start

  • 7:00 am - Marathon and 50k Start

  • 7:30 am - Half Marathon Start

  • 8:00 am - 5k and 10k Start

NOTE:  All races start at the scheduled time. Late starts will not be accommodated. 



The cutoff for all distances are as follows:

SATURDAY – November 6, 2021

  • 3:00 pm -   5k, 10k, Half Marathon, Marathon, 50k

  • 9:00 pm -   50 mile

Course Markings

The race will be marked with in ground flagging, cones, and color coordinated directional signage for each race distance.​



View and explore the trails via park maps.


Course Difficulty 

2 = Easy to Moderate course with little to no elevation gain or loss. 100% of the course footing is on hard packed sand.









Aid Stations

Well stocked Aid Stations manned by passionate volunteers and unmanned aid stations, provide:

  • First Aid:  Band-Aids, Vaseline, and other basic first aid supplies

  • Food/Drink:  Water, electrolyte drinks, and various salty, sweet and savory snacks


Aid stations will be conveniently located every 3-5 miles on the out and back course.​

Cupless Race

This is an environmentally friendly race and it is our goal to keep the trails litter free to preserve their beauty. 


Cups won't be supplied during this racing event.  Please bring your refillable water bottles and we will refill them at the aid stations.

Training / Coaching

At every level, proper training can help you prepare for success. Ultra Expeditions has certified coaches and offers individual and group training packages. Contact us for more information.

Race Shirts, Medals and Awards

Everyone registered will receive a Barrier Island Ultra Race Shirt if they register by October 16, 2021.


Finishers of the 5k, 10k, half marathon, marathon, 50k, and 50mi will receive beautiful, custom designed medals based on availability. 

Winner Awards


Top Male and Top Female for each race. Awards will be emailed after the race ends.

Pictures and Video


SATURDAY – November 6, 2020

5:30 - 8:00am       Packet Pick Up/Registration at the Beach Lodge 

6:00 am                 50 mile Race Start at the Beach Lodge

7:00 am                 Marathon and 50k Start at the Beach Lodge 

7:30 am                 Half Marathon Start at the Beach Lodge

8:00 am                 5k and 10k Start at the Beach Lodge

3:00 pm                 5k, 10k, Half Marathon, Full Marathon, and                                             50k cutoff

9:00 pm                 50 mile cutoff

NOTE:  Race briefings begin promptly, 20 minutes prior to race start time, at the start line. If they choose to drop during the race they will receive a DNF.



Registration will remain open until the start of each distance - unless the race is Sold Out.

Early Registration Discounts

Sign up early to get the best pricing.

  • Best Discount - Before April 1, 2021

  • Good Discount - Before May 1, 2021

  • Standard Pricing - After May 1, 2021



Be part of the fun and volunteer.  We promise you a great time.


All of our volunteers receive discounts toward future races and enjoy free food, beverages and parking.

There are opportunities to man aid stations, registration and help at the start and finish lines.

Contact us for more information.  Or sign up now.

Parking, Lodging and Travel 

Park Entrance and Parking

Beach Lodge
2016 On the Beach Dr.
Port Aransas, TX 78373



PLEASE NOTE: The beach/park may collect fees for entrance and/or parking that are not covered in race registration. The beach will be open for racers to arrive and leave.  Please pay for your parking pass at city hall, the chamber of commerce, local grocery stores, or at various businesses and vendors in town or on the beach. Contact the city of Port Aransas for more information.

Directions to the Start

All race distances start and finish at the Beach Lodge in Port Aransas


Sponsor Hotels

The closest hotels are in Port Aransas, Texas.

Best Western

400 E Avenue G, Port Aransas, TX 78373



Camping is available at Mustang Island State Park and beach camping is available on public beaches with a permit.

PLEASE NOTE:  Ultra Expeditions is not responsible for any missing or damaged property, or any accidents.

ALSO NOTE: The parks/city may collect fees for entrance and/or parking that are not covered in race registration. Contact Mustang Island State Park or the City of Port Aransas for more information.


The closest airports are:

Corpus Christi International Airport


Sponsorship Opportunities

There are multiple sponsorship levels available. 

Title Platinum, Gold, Silver, Bronze

Get all the Sponsorship Package Details.  

Learn more >>


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Thank you. We'll be in touch soon!