A good quality mask is worth the money, this applies to snorkelling gear for both scuba and snorkelling. If you are travelling thousands of miles to experience swimming with whales in Tonga then the last thing you want is your mask leaking or fogging up. So I've put together a small article of advice for people looking to buy a new snorkel and mask. A good snorkel mask will have high quality glass which gives you a clear view and helps avoid any blemishes that can appear. Alt