North Korean semi-sub

I'm near a boat!

When we moved the fin, we heard hydraulic fluid gurgling on the other side

There's yer problem

Ping!

English writing all over the super outboards

Czech M61

'Panties', with 'SPANNER' emblazoned on them

As our lil' fiddies buzzed like bees around the southern bit of Dolsan Island today, I spotted something cool on a small sign as it flashed by.  We doubled back and discovered an overgrown and abandoned complex of buildings, one of which was still open.  Inside, unattended, was a North Korean semi-sub that was found and sunk by depth charges in 1998, as it attempted to drop off (or pick up?) an infiltration team.  Pretty cool to check the thing out.  Good find, us.