Gili Air Spearfishing is a great way to experience the thrill of spearfishing without ever leaving the comfort of your own home. With a local's help, you can learn the basics of spearfishing and enjoy some of the best fish in the world.. Gili Islands is one of the most popular diving destinations in the world. Spearfishing has been a part of the culture on Gili islands for many years and is a popular activity for tourists. Spearfishing is a great way to enjoy the peaceful environment and the beautiful coralreef.