Is a lifeproof case good for snorkeling?

Should I get a life proof free case for my iPhone to go snorkeling? It says it will last up to 6.6 feet deep i don't know how that works but would it last if I go even deeper?

You can go deeper but there's no guarantee that it'll protect your phone from water damage.

Just do what a lit of other people would do. Get a ziplock bag and put your phone in it. Get the one that has the old lock where you run your fingers across the bag to seal it. Don't get the one that has the zipper unless you test it out to make sure it's really waterproof.

You get a WATER PROOF pouch or case, one that is made exactly for that purpose. You want something that is not going to allow water into the case or phone, no matter how deep you are. Pressure is the problem, and any gap, space or loose seal, will allow water to get into the phone, and if that water is salt water, you can kiss your device goodbye, if it is not flushed out and dried out within 12 to 24 hours.

If that case has EVER been dropped, I would not trust it under water. Having been on many trips snorkeling in the ocean, to have people around me complaining about their cases leaking, because some port or seal was unprotected or applied incorrectly.