The half marathon course is a scenic loop that takes runners northeast up along Murray Bay and Duck Lake and then heads eastward into the tombolo. At four miles runners head back westward on the Trout Bay Beach. Runners then ascend inland to the heavily forested highlands of the island's interior. When runners reach Echo Lake they head toward the western coastal trail and rejoin the marathon course (22 mile mark of the marathon). The remainder of the course follows west coast of the island on a gradual downhill back to Williams Landing and the finish.
