In deep ocean biomes (possibly normal oceans as well) there are randomly generated air pockets that are best spotted when doing a fly-over.
Environment
Java for Mac (Newest Version)
Mac OS X 10.9
MC-37601
Random Air Pockets in Deep Oceans
Resolved
Duplicate
0
Duplicate of MC-954 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.