The holes are land crab burrow entrances. The burrows are often several feet deep. These crabs are often blue in color and they eat leaves, fruits and berries. They are very shy, but if you stand still they may make an appearance..
Click me for a dinosaur at McKee Gardens, Baellynasaura, “Big Eyes
References: text is from the park placard with minor edits.
Michael Stephen Wills Photography 
Michael, the title of this post caught my interest. It was a pleasure to learn about a land crab. Since my wife grew up on Maryland’s Eastern Shore, we are more familiar with the blue crab. As with most crabs, these two prefer their quiet lives.
LikeLiked by 1 person
I did consulting on the Eastern Shore and Baltimore (Greater Baltimore Medical Center)
LikeLike