The dangerous venomous spines are located on the fish’s first dorsal fin and on its gill cover. Recreational fishermen are advised to wear protective gloves when handling weever fish they have caught. Weever fish can bury themselves almost completely in the sand, making them difficult to spot. Other venomous fish to watch forTravelers vacationing around the Red Sea, Indian Ocean or Pacific Ocean should also be aware of the stonefish, considered the world’s most venomous fish. Experts recommend wearing water shoes when entering the sea to reduce the risk of stepping on venomous fish.