Welcome to Flyertalk.

It pretty much depends on the cruise line, so you will want to check to be sure exactly what is and is not included, they usually have it in their FAQ's on the websites.

In general the following is included

• Your cabin
• Meals, but usually not in the specality restaurants if they have any
• Non carbonated non alcholic normal drinks like water, juice, iced tea, and milk (but not specality things like smoothies)
• Towels, chairs
• Use of the pools
• Probably some recreation areas like mini golf
• Access to the Library and board games

What is not generally included, though again some lines may include some of this stuff

• Tips to the dining staff
• Tips to the room staff
• soda, beer, alcohol
• shore tours and trips
• specality dining areas
• medical treatment
• gift shop purchases