There's not really an age. You can be any age unless you go snorkeling somewhere that has a required age.
a snorkel.
snorkel
You can read up on snorkel equipment by going to www.wikipedia.com. They have information on everything you could possibly need about absolutely everything.
It would be ideal to call the local attraction sites and inquire about needing marine gps snorkels. They may have the equipment you need onsite for your snorkel.
Technically, no. A snorkel is merely a breathing apparatus that allows one to breathe while one's face is below water. You could use a snorkel while walking or crawling in shallow water. Still, it'd be a far better idea not to be in water deep enough to snorkel in without some ability to swim.
A great place to snorkel is in Malta (Europe)
Snorkel
snorkel (it stays the same)
I lost my snorkel; then surfaced.
Snorkel is not a German word, therefore; it has no meaning in German. In English, a snorkel is a tube that swimmers/divers use to breathe underwater. It's part of their diving masks. The English verb to snorkel is the actual act of swimming/diving with the snorkel. To say snorkel in German, the verb is schnorcheln, and the noun is der Schnorchel.
snorkel gear
old diesel with no electric ignition. fit snorkel pipes on inlet and exhaust