Frederiksted, St. Croix (US Virgin Islands) - "Reindeer Run Half Marathon & 5K". Too cold to run? Come to St. Croix, the largest of the US Virgin Islands, for the 3rd Annual Reindeer Run Half Marathon & 5K on December 8, 2024. The run is fairly flat with unforgettable views of white sandy beaches and cerulean blue sea along the 13.1-mile course. Ring in the holidays in the Caribbean way! For more information, please call 340-513-2707.