I've ended up in the harbour and still haven't fallen through.
(very hard water in Monaco)
Yeah did the same .
When i drove of the water back onto track, jumped over track and ended in oblivion
There are two little down ramps at the end of braking zones , fell through both of them.
One other i can't recall of the top of my head.
Also it happened in another spot after i typed the post above, again can't remember where.
Also on the right hand side of the straight after the chicane along the waterfront , if you go to far to the right , you wheels drop down a a foot or two, not terminal you can drive out of it.
Long story short , stay on track or else .
Was driving horridly obviously each time these happened , gave up after 5 laps way too frustrated to carry on. (nothing to do with falling through more to do with my inadequacies )