There are 2 options:
First option: Take a taxi from the airport to the water taxi downtown; we can send our driver to meet your flight and he will then drop you at the water taxi terminal; it’s about 25 min. drive. We would need your flight details for that.
There are two water taxi companies with equally good service. You can check out the timetables on https://sprinter.bz/ and https://belizewatertaxi.com/schedule/. The journey is about 45 min.
Second option: fly with www.tropicair.com or www.mayaislandair.com. After 10 min. flight, you will land on the small Caye Caulker airport.