For the zipline attractions on Royal Caribbean ships (found on Oasis-class vessels) and at their private destinations like Labadee or CocoCay, there are strict weight and height requirements for safety. Onboard the ship, the weight limit is typically between 75 lbs (34 kg) and 275 lbs (125 kg). You must also meet a minimum height requirement of 52 inches (132 cm). At Royal Caribbean’s private destinations, the limits can be slightly different; for example, the "Dragon’s Breath Flight Line" in Labadee often has a maximum weight limit of 250 lbs (113 kg) or 275 lbs depending on the current wind conditions and equipment in use. These limits are strictly enforced with scales at the check-in area to ensure the braking systems can safely stop the rider at the end of the line. Riders must also wear closed-toe shoes (no flip-flops) and should be in good physical health. If you are near the weight limit, it is always a good idea to check with the "Sports Staff" on the first day of your cruise, as they can provide the most up-to-date requirements for your specific sailing and current weather conditions.