I've located 2 GPO dens in a muddy flat area in about 5 ft of water. One animal looks to have a head bigger than a grapefruit, the other one is a good bit smaller. I'd like to capture these animals on film. Is their anything(mackerel, striped shore crab in a jar...unlikely to get hands on a rock crab, toys etc.) that I could try to lure them out if I go again tomorrow before the sun sets?