Methodology: Rankings are based on reader votes collected in the Travel + Leisure Worldâs Best Awards survey. Scores shown have been rounded to the nearest hundredth of a point; in the event of a true tie, properties and companies share a ranking. For the complete methodology, go to travelandleisure.com/worldsbest.
When diving doubles you will need to use your wing/BCD to compensation. Typically you can't control your buoyancy only with a drysuit with steel doubles and stage bottles so you will need to use your wing to offset buoyancy.
The abbreviation qid or q.i.d. is also sometimes written without a period in capital letters as QID. However it is written, it is one of a number of hallowed abbreviations of Latin terms that have been traditionally used in prescriptions to specify the frequency with which medicines should be taken. Other examples include: 1  q.d. ( 2 qd or QD) is once a day; q.d. 3  stands for quaque die (which means, in Latin, once a day). 4  b.i.d. ( 5 or bid or BID) is two times a day; b.i.d. 6  stands for bis in die (in Latin, 2 times a day). 7  t.i.d.