The voucher must be used on the selected date and within operating hours; Invalid after expiration • When making a reservation, "be sure to" write down the contact number or ID of the message app (KakaoTalk, Line, etc.)• Turn off the "Block Messages" function on LINE app the day before your trip so that your tour guide can contact you and provide the tour information.• If you are bringing a stroller or wheelchair, please notify us in the "Notes" section when booking. • Children under the age of 3 can ride with a guardian. In this case, seats, tickets, etc. are not included.• If you come with children under 2 years old (under 24 months), transportation seat and entrance fee are not included. In this case, please mention it in the 'Remarks' section when booking. • The trip date may be changed or the tour may be canceled due to weather conditions.• Please note that there are some sections of the tour that require walking. • Children under 110cm in height are not allowed to enter the Spacewalk.• According to the weather conditions of the day (rain, strong wind), you will visit Yeongil Beach instead of Spacewalk.