I got a Metro orienteering certificate.
I once did a scuba dive. I had a little panic attack when I stuck my head underwater and realised that I shouldn't hold my breath. But I did anyway and then I fell to the floor and couldn't turn around because those damn heavy tanks held me down! But I did get to see a seahorse. :)
That's the best story ever.
And that all happened in flat water only 1.2m deep.