There’s something magical about shore diving. No boat schedules. No seasick tourists feeding the fish. Just you, your buddy, and the humbling realization that carrying scuba gear across a beach is basically CrossFit with worse footwear.

A good dive buddy can make a dive unforgettable for all the right reasons. A bad dive buddy? That’s how stories begin with phrases like, “So there I was…” and end with someone buying apology drinks afterward.

A clean, fog-free mask makes every dive and snorkel trip more enjoyable. Here are our best tips to prepare your mask before entering the water. You can spend less time dealing with fog and more time enjoying the underwater world.