We've all been there, plan a quick day out on the hill or crag only for it to take much longer than expected.
This guy thought it would take 40 minutes but took 4.5 hours from the Isle of Whithorn to the Isle of Man on a jet ski, followed by a 15 mile walk. Good effort (apart from breaking covid rules). https://www.theguardian.com/world/2020/dec/15/man-who-rode-jetski-from-scot...
One holiday with Mrs Kalna had a planned 5-6 hour walk to the next village (it was a walking holiday) but resulted in a 13 hour epic with a dog attack, a blizzard and eventually some friendly border guards.