Barrier Reef Snorkeling & Island Beach Break OR Snorkeling Wonders the Barrier Reef?

I am looking at two excursions offered by Carnival in Belize

Snorkeling Wonders of the Barrier Reef $69.99 p/p

the other

Barrier Reef Snorkeling & Island Beach Break $89.99 p/p

Can anyone tell me what the difference is?

Which is better?

I think the two go to different islands. The snorkeling wonders of the barrier reef goes to Rendezvous Caye (in the video above).

The Barrier Reef snorkel and island beach break goes to Water Caye. Sorry I haven't been to that one, maybe you can find youtube videos or search images of it.