And your hotel doesn’t organize airport transfers? I once stayed at such a hotel in the Maldives, and the service there is truly top-notch. As for Hamilton Island, it does have some similarities to the Maldives, to be honest. As for the transfer, I booked it in advance here: https://gettransfer.com/en/directions/australia/hamilton-island/airports/hamilton-island-airport . My flight was even delayed for half an hour, but the driver was still waiting for me to take me to the hotel. How long are you planning your vacation on this island?