According to the instructions on the Cancer Council sunscreen bottle, each application of sunscreen on an adult should be about 35mL. And, of course, reapply after swimming, sweating, towelling, and extended sun exposure. So, that’s at least 3 applications per day for two adults = 210mL. So, we should be going through about a bottle of sunscreen per day on Aitutaki. We’re not quite up to that pace, but close…and we escaped without any serious sunburns.