Cruises are advertised as pretty cheap. It isn't rare to see prices below $200. I've even seen some short cruises advertised in the double digits. But as we know from cell phone companies, the advertised price isn't the price you write the check out for. Here are some of the hidden fees you can expect to pay: Taxes and Fees: Varies of course. But a 3 night Bahama cruise will have around $35 USD is taxes and fees Fuel Surcharge This was an issue in 2008 with high gas prices, but since oil prices have dropped, these fees have been dropped as well. But if oil prices climb again, be on the lookout! Tip/Service Charge: All cruise lines is require a service charge or recommend a tip amount. It varies slight by cruise line, but a good rule of thumb is $10 per person per day. For exact amounts based on your cruise line check out the Cruise tip Calculator Excursions & Spa: Sadly the onboard Spa isn't included in the price. Excursions are activities arranged by the cruise