Mozambique offers some of the world's best fishing and some of the most challenging big game fishing in southern Africa, particularly around Guinjata Bay and the deep waters of the Mozambique Channel. Marlin, sailfish and other huge fish weighing over 1,000 pounds (454kg) can be caught; however, a catch and release system is encouraged to protect the natural resources. A number of centres along the coast also offer rock, surf and fly-fishing.