• Guests under 18 years of age participating in the activity alone must bring a signed consent form from a family member or guardian on the day of the activity. Guests under 12 years of age must be accompanied by a parent or guardian (boat only is not permitted).
  
• Pregnant women, those with physical disabilities, mobility impairments, mental illnesses, circulatory system diseases, respiratory system diseases, cardiovascular diseases, claustrophobia, high blood pressure, asthma, pneumothorax, otitis media, epilepsy, diabetes, liver diseases, those taking certain medications, those who have undergone surgery, and those with serious illnesses are not eligible to participate in the trip. If you are unsure about your health condition, please inquire via message before booking.
  
• If any of the above symptoms are found during the health check on the same day, you will be unable to move around and will not be able to get a refund.
• Due to equipment restrictions, passengers weighing over 110 kg are not allowed to participate in the activity.
  
• The event will proceed as scheduled even in rainy weather, provided the sea conditions are calm and suitable for sailing.
  
• The corresponding languages ​​are Japanese and basic English.
  
• The minimum number of participants for this event is 2. A group can be formed with just 2 participants.
• The instructor will first assess the guest's skill level and then select a suitable freediving location.
• Depending on the guest's skill level, they may not be able to enter the Blue Cave for activities on that day.

For safety reasons, participants who violate the following rules on the day of the event will be unable to participate and will not be eligible for a refund:

1. Overweight.
2. There was drinking that day, and the person was hungover.
3. If the on-site instructor determines that a tourist's physical condition is not suitable for participating in water activities.
4. People aged 60 and above and 9 and below.
   
5. For safety reasons, you should take a plane within 12 to 24 hours after diving.