Just had my annual skin check with a local GP that specialises in skin cancer. (My own GP uses him so he ought to be good.)
Went over my skin with his camera, and compares what he sees to last years pictures. Hmmm, now he's out with the knife, fortunately with an injection of local, a small one off the nose, a bit larger one off the back and burnt one off my temple. Took about 20 mins.
Stitched up with bandages, I told him I'll be on the water in a day or two. No worries he said, so I did. All healing well, took the stitches out myself on my nose without cutting it off with the scalpel and my partner got over her queasiness and did my back. However her first move was to cut the knot off completely so she had to go digging for the threads to get them out

Got the biopsy results back, no further action required

Scheduled me in for 6 monthly checkups now. I use sun screen, cap and sunnies as well as wetsuit to suit the season but time and exposure will get you.
Strangely enough the previous skin cancer I had was on my neck where it never saw the sun much so it's not just the areas you expect that you'll find them. That one took two trips to get fully removed

And of course you can never check your own back easily.
Havin' fun in the sun, Dave