I have seen a very little and cozy small resort which is located right next door to White Sands Cove.
the name is: Cocotal Inn & Cabanas
You can look up their website at:
www.cocotalbelize.comThey are ranked #2 on the Specialty Lodging section on Trip Advisor.
It's a great, friendly, clean and beautiful small piece of property (beachfront property) - although it does have a seawall.
just another option.