Make sure you have a valid and current US Passport.

There is wifi most places on the island. Download WhatsApp so you can use wifi calling.

US cash is accepted everywhere and some places take card as well. The exchange ratio is 2:1, meaning 2 Belize dollars = 1 US dollar. Unless specified, always assume prices are in Belize dollars.

The national language of Belize is English, so cancel your Rosetta Stone.

Time feels more like a suggestion in Belize. You are on island time, mon.