Besides wearing a prescription snorkel mask, snorkelers with vision problems can wear soft contact lenses or rely on the water’s natural magnification properties. You can also make a DIY prescription snorkel mask using an old pair of glasses or by attaching a stick-on magnifier lens to a regular mask.
These options may be preferable to you if you are looking for the cheapest solution or only plan on snorkeling a couple of times on vacation. You can read more about the alternative options in our article about how to snorkel with glasses.