If you want to do Ambergris Caye on a budget, i would suggest Pedro's Inn very inexpensive $12.00 to $45.00 a night depending upon what room you want. The diving will cost you about $75.00 for a two tank dive and a discount will be given depending on cash payment and how many dives you do. If you eat at the local restraunts you can get by a lot cheaper than on the beach.