The best spot to snorkle in that area is the Hanauma Bay Nature Preserve.
I don't know if snorkel gear can be rented at Hilton Head. I always take my own because often times the gear you rent will be wore out. Good snorkel gear isn't that expensive and it packs well into luggage. Take your own mask and snorkel at least, you will be glad you did. Rent fins would be OK.
There are some great selections when it comes to hotel choices in Oahu, Hawaii. The Hilton Hawaii Village Waikiki Beach Resort is a common lodging place in Oahu, Hawaii.
snorkel
a snorkel.
A great place to snorkel is in Malta (Europe)
snorkel (it stays the same)
Snorkel
I lost my snorkel; then surfaced.
The Hilton Waikoloa Village is located on the Kohala Coast of the Big Island of Hawaii. They have many amenities including the ocean fed lagoon offering snorkeling and kayaking. The average cost of a one night stay is $219.
According to the forums on TripAdvisor, there are a number of good locations for snorkeling near the Yucatan peninsula. Some of the recommended beaches are Akumal, Half Moon Bay and Yal Ku Lagoon.
The Blue Lagoon
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.