The Crab Spring pool measures 75 ft in diameter and it consists of at least four separate spring vents. The largest vent is on the east side of the spring pool with a depth of 8 ft. The water is bluish and slightly murky. Prominent boils occur over each vent. The spring pool bottom is sand and limestone near the vents but the rest of the pool is covered by aquatic grasses and exotic aquatic plants that have a thick brown algal coating.
A private estate occupies the northern side of the spring pool with lowland forest surrounding the rest of the area. The spring flows 700 ft southwest to the Chassahowitzka River.
Crab Spring is at the head of the run near a private residence.