a small sand bubbler crab lurks in the sand.

mauritius bubbler masking pattern prints small lurks human sand crab shoe view top crab background camouflaged carapace camouflage lurking surface disguise marine life shore crabs sandy beach tiny bubbler small crustacean lurk animal footmark mark footwear pattern trace boot sand footstep foot sandy footprints footsteps footmarks shoes man track shoe imprint human print step view tropical island top mauritius footprint coast background