No, ice skating is a complimentary activity on Royal Caribbean ships that feature an ice rink (such as the Oasis, Freedom, and Voyager class ships). Guests of all ages can participate in "Open Skate" sessions at no additional cost. The cruise line even provides the ice skates, helmets, and safety pads for free. To participate, you simply need to check the "Cruise Compass" or the Royal Caribbean app for the scheduled open skating times and sign a digital waiver. There are, however, a few strict requirements: you must wear long pants and socks to be allowed on the ice; guests in shorts or barefoot will be denied entry for safety reasons. While the skating itself is free, the high-quality, professional ice shows (like iSkate 2.0) are also included in your cruise fare, though you may need to make a free reservation in the app to secure a seat. The only time you might pay extra is for "private" professional lessons, which are occasionally offered on longer voyages, but for the standard guest, it is one of the best free thrills at sea.