Do I need a guide for snorkeling at Pigeon Island?

You don't need a guide if you're experienced at snorkeling or diving. But for your safety, he is valuable to you. You can ask him about the best places to see live coral reefs and marine life through him. You can also get help from him in case of any emergency. However, whether to hire a guide is a decision you must make because you know your level and needs best.