Snorkeling unspoiled reefs and exploring pristine beaches has its hazards in the tropics. Even us "dimdims" (PNG name for white people, because we do such stupid stuff) have gotten horrible tropical ulcers (red swollen infections that grow within a matter of hours) from coral scrapes and insect bites on the legs. Without antibiotics we'd have to med-evac a lot of the cruisers back to Australia to avoid losing limbs. Even the young healthy guys get them. An Australian guy got a fishing lure deep in his foot and couldn't get it out with his own bolt cutters, etc. So his wife tracked down the rally boats and got the doctors to do surgery on him.
We are now in Blue Lagoon surrounded by several beautiful beaches and spectacular coral reefs: