There are four dive shops on the island:
Frenchies Diving Services
Paradise Down Scuba
Belize Diving Services
Big Fish Dive Center
All have excellent reputations. You might want to make a choice based on which is available to start a class on the date you wish to start.
We have found that Belize Diving Services is more flexible with class starting dates.
Thanks and cheers,
Wendy Auxillou
Auxillou Beach Suites
www.auxilloubeachsuites.com