My wife and I are both over 70 years old. We celebrated our birthdays and booked our Phu Quoc trip through an app, including flights and sightseeing tickets. The app provided excellent guidance, from payment to flight schedule updates. Upon arriving at Grand World Phu Quoc, the staff were very helpful, assisting us with boarding and disembarking the boat twice, and even taking photos for us as souvenirs, leaving us with wonderful memories of our Phu Quoc trip.