Some of our tours and rentals have age restrictions: Jet Ski Tours – No children under 10 years old, Participants from 10 to 17 years old must be accompanied by an adult on the same Jet Ski. Maximum Jet Ski Weight Limit: 225 lbs. per person | 450 lbs. per jet ski. Speedboat rides – Minimum age: 3 years | Participants from 3 to 17 years old must be accompanied by an adult in the same boat. All boat and jet ski drivers must be 18 years or older to drive.The maximum weight limit for a speedboat: 260 lbs. per person | 530 lbs. per boat. Snorkeling: children under 3 years old are not allowed and this activity is not recommended for people with asthma and claustrophobia problems.