APA is Advanced Provisioning Allowance. Paid in advance, it covers any additional expenses you rack up during your charter week. It includes fuel, marina fees, on-yacht meals, water toy usage, services, etc. Per the MYBA agreement, it’s usually in the range of 30-40% of the full price. If by the end of your cruise, you haven’t spent the entire amount, you’ll receive the remainder of it back. If your expenses exceed the upfront paid amount, you’ll have to cover them before disembarking.